Finding the Fourth Proportional to 87,122.56, 120,187.92 and 58,838.08
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Solution
The fourth proportional to 87,122.56, 120,187.92 and 58,838.08 is: 81,168.72
Step by Step Solution
- Step 1: Write the proportion equation
87,122.56 : 120,187.92 = 58,838.08 : x - Step 2: Convert to fraction form
87,122.56/120,187.92 = 58,838.08/x - Step 3: Cross multiply
87,122.56x = 120,187.92 × 58,838.08 - Step 4: Simplify right side
87,122.56x = 7,071,626,451.99 - Step 5: Solve for x
x = 7,071,626,451.99/87,122.56 - Step 6: Final answer
x = 81,168.72
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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.