Home / 87,438.48-131,288.92-50,040.78

Finding the Fourth Proportional to 87,438.48, 131,288.92 and 50,040.78

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Solution

The fourth proportional to 87,438.48, 131,288.92 and 50,040.78 is: 75,136.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,438.48 : 131,288.92 = 50,040.78 : x
  2. Step 2: Convert to fraction form
    87,438.48/131,288.92 = 50,040.78/x
  3. Step 3: Cross multiply
    87,438.48x = 131,288.92 × 50,040.78
  4. Step 4: Simplify right side
    87,438.48x = 6,569,799,962.16
  5. Step 5: Solve for x
    x = 6,569,799,962.16/87,438.48
  6. Step 6: Final answer
    x = 75,136.26

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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.