Finding the Fourth Proportional to 71,656.12, 107,442.36 and 27,285.92
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Solution
The fourth proportional to 71,656.12, 107,442.36 and 27,285.92 is: 40,912.96
Step by Step Solution
- Step 1: Write the proportion equation
71,656.12 : 107,442.36 = 27,285.92 : x - Step 2: Convert to fraction form
71,656.12/107,442.36 = 27,285.92/x - Step 3: Cross multiply
71,656.12x = 107,442.36 × 27,285.92 - Step 4: Simplify right side
71,656.12x = 2,931,663,639.57 - Step 5: Solve for x
x = 2,931,663,639.57/71,656.12 - Step 6: Final answer
x = 40,912.96
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1.5x scale
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.