Home / 87,721.30-131,472.93-40,286.07

Finding the Fourth Proportional to 87,721.30, 131,472.93 and 40,286.07

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Solution

The fourth proportional to 87,721.30, 131,472.93 and 40,286.07 is: 60,379.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,721.30 : 131,472.93 = 40,286.07 : x
  2. Step 2: Convert to fraction form
    87,721.30/131,472.93 = 40,286.07/x
  3. Step 3: Cross multiply
    87,721.30x = 131,472.93 × 40,286.07
  4. Step 4: Simplify right side
    87,721.30x = 5,296,527,812.16
  5. Step 5: Solve for x
    x = 5,296,527,812.16/87,721.30
  6. Step 6: Final answer
    x = 60,379.04

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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.