Finding the Fourth Proportional to 86,487.31, 119,355.87 and 48,760.75
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Solution
The fourth proportional to 86,487.31, 119,355.87 and 48,760.75 is: 67,291.74
Step by Step Solution
- Step 1: Write the proportion equation
86,487.31 : 119,355.87 = 48,760.75 : x - Step 2: Convert to fraction form
86,487.31/119,355.87 = 48,760.75/x - Step 3: Cross multiply
86,487.31x = 119,355.87 × 48,760.75 - Step 4: Simplify right side
86,487.31x = 5,819,881,738.10 - Step 5: Solve for x
x = 5,819,881,738.10/86,487.31 - Step 6: Final answer
x = 67,291.74
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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.