Finding the Fourth Proportional to 86,487.24, 129,691.88 and 36,541.63
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Solution
The fourth proportional to 86,487.24, 129,691.88 and 36,541.63 is: 54,795.98
Step by Step Solution
- Step 1: Write the proportion equation
86,487.24 : 129,691.88 = 36,541.63 : x - Step 2: Convert to fraction form
86,487.24/129,691.88 = 36,541.63/x - Step 3: Cross multiply
86,487.24x = 129,691.88 × 36,541.63 - Step 4: Simplify right side
86,487.24x = 4,739,153,014.95 - Step 5: Solve for x
x = 4,739,153,014.95/86,487.24 - Step 6: Final answer
x = 54,795.98
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.