Question

if the first three terms of proposition are 9,8 and 54 respectively find the fourth term​

Answer 1

We know that if,

$a:b :: c:d;\, then, \, ad = bc\, and \, \frac{a}{b} = \frac{c}{d}$

$\\Here, a = 9; b = 8; c = 54; d = x\\\\So, ad = bc\\\implies 9 \times x = 8 \times 54\\\\\implies x = \frac{432}{9} \\\\\implies x = 48$

∴ The fourth term is 48.

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