💥 Q 48: Prep 3 Algebra Question Bank T1

a) If \( a, b, c \) and \( d \) are proportional quantities, prove that:

\[\frac{a^2 + c^2}{b^2 + d^2} = \frac{a \, c}{b \, d}\]

L.H.S. and R.H.S = \( m^2 \)