Question

The first, second and fourth terms of a proportion are 16, 24 and 54 respectively. The third term is

(a) 32
(b) 48
(c) 28
(d) 36

Answer 1

(d) 36

The first, second and fourth term of a proportion are 16, 24 and 54, respectively.

Let third term is be x.

According to the question, we have:

16 : 24 = x : 54

$$\begin{gathered} \frac{16}{24}=\frac{x}{54} \\ \Rightarrow \frac{16}{24}\times 54=x \\ \Rightarrow x=36 \end{gathered}$$