Finding the Fourth Proportional to 71,601.18, 107,342.64 and 31,591.68
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Solution
The fourth proportional to 71,601.18, 107,342.64 and 31,591.68 is: 47,361.43
Step by Step Solution
- Step 1: Write the proportion equation
71,601.18 : 107,342.64 = 31,591.68 : x - Step 2: Convert to fraction form
71,601.18/107,342.64 = 31,591.68/x - Step 3: Cross multiply
71,601.18x = 107,342.64 × 31,591.68 - Step 4: Simplify right side
71,601.18x = 3,391,134,333.24 - Step 5: Solve for x
x = 3,391,134,333.24/71,601.18 - Step 6: Final answer
x = 47,361.43
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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.