Finding the Fourth Proportional to 71,391.17, 107,087.49 and 29,260.46
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Solution
The fourth proportional to 71,391.17, 107,087.49 and 29,260.46 is: 43,890.99
Step by Step Solution
- Step 1: Write the proportion equation
71,391.17 : 107,087.49 = 29,260.46 : x - Step 2: Convert to fraction form
71,391.17/107,087.49 = 29,260.46/x - Step 3: Cross multiply
71,391.17x = 107,087.49 × 29,260.46 - Step 4: Simplify right side
71,391.17x = 3,133,428,682.21 - Step 5: Solve for x
x = 3,133,428,682.21/71,391.17 - Step 6: Final answer
x = 43,890.99
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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.