Finding the Fourth Proportional to 88,116.79, 121,601.28 and 47,830.53
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Solution
The fourth proportional to 88,116.79, 121,601.28 and 47,830.53 is: 66,006.19
Step by Step Solution
- Step 1: Write the proportion equation
88,116.79 : 121,601.28 = 47,830.53 : x - Step 2: Convert to fraction form
88,116.79/121,601.28 = 47,830.53/x - Step 3: Cross multiply
88,116.79x = 121,601.28 × 47,830.53 - Step 4: Simplify right side
88,116.79x = 5,816,253,671.08 - Step 5: Solve for x
x = 5,816,253,671.08/88,116.79 - Step 6: Final answer
x = 66,006.19
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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.