Question

12.Find the value of x, if(а) 8, x, x, 50 are in proportion.(b) 36, 90, 90, x are in proportion.(c) X : 6 = 25 : 5are in proportion.

Answer 1

Answer:

Let the fourth term = x

18:27::32:x18:27::32:x

⇒ 18×x=27×32

⇒ x= 27×32/18

=3×16=48

Fourth term = 48