Finding the Fourth Proportional to 88,321.92, 121,867.74 and 52,520.74
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Solution
The fourth proportional to 88,321.92, 121,867.74 and 52,520.74 is: 72,468.80
Step by Step Solution
- Step 1: Write the proportion equation
88,321.92 : 121,867.74 = 52,520.74 : x - Step 2: Convert to fraction form
88,321.92/121,867.74 = 52,520.74/x - Step 3: Cross multiply
88,321.92x = 121,867.74 × 52,520.74 - Step 4: Simplify right side
88,321.92x = 6,400,583,886.93 - Step 5: Solve for x
x = 6,400,583,886.93/88,321.92 - Step 6: Final answer
x = 72,468.80
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.