Walmsley and Ekenasio shared the shooting duties in a way that Ekenasio and Nweke do not when circle feeders can make the most of Nweke as a tall target.
In the first quarter Walmsley shot nine goals from 11 attempts and Ekenasio got six from seven.
To start the second quarter New Zealand switched the shooting circle with Nweke getting on court joined by Maia Wilson at goal attack, while the remaining players - Kimiora Poi, Maddy Gordon, Kate Heffernan, Karin Burger and Kelly Jackson - stayed on court to start the second 15 minutes.
Nweke shot six from seven and Wilson got five from six during a period of play that the Diamonds took control.
For the third quarter Nweke and Ekenasio teamed up before Nweke and Walmsley closed out the game as Nweke was once again the target in the circle and shot all 12 of New Zealand’s goals in the quarter.
Heading into the fourth quarter Australia were ahead 48 -37 and New Zealand briefly reduced the margin before Australia extended the lead again to keep New Zealand at their lowest total of the series.
Silver Ferns coach Dame Noeline Taurua gave all 12 players court time for the first time in the four game series.
Ekenasio told Sky Sport that “unfortunately we didn’t play at our best”.
“We really wanted to take the game but important to get everybody out there we knew that it’s been such a full team effort to get us to where we are today and to be able to take the Cup so we really wanted to give everybody the opportunity today... all of us will learn lots in combinations but also individuals in getting out there.”
The Silver Ferns have claimed the Constellation Cup for just the third time since 2010 after a 14-goal win in Wellington, an 11-goal win in Auckland and an 18-goal win in Perth.
The Cup will be on the line again next year.
RNZ