Finding the Fourth Proportional to 88,230.18, 121,743.92 and 52,419.28
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Solution
The fourth proportional to 88,230.18, 121,743.92 and 52,419.28 is: 72,330.45
Step by Step Solution
- Step 1: Write the proportion equation
88,230.18 : 121,743.92 = 52,419.28 : x - Step 2: Convert to fraction form
88,230.18/121,743.92 = 52,419.28/x - Step 3: Cross multiply
88,230.18x = 121,743.92 × 52,419.28 - Step 4: Simplify right side
88,230.18x = 6,381,728,630.78 - Step 5: Solve for x
x = 6,381,728,630.78/88,230.18 - Step 6: Final answer
x = 72,330.45
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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.