Home / 87,681.40-131,522.10-59,687.80

Finding the Fourth Proportional to 87,681.40, 131,522.10 and 59,687.80

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Solution

The fourth proportional to 87,681.40, 131,522.10 and 59,687.80 is: 89,531.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,681.40 : 131,522.10 = 59,687.80 : x
  2. Step 2: Convert to fraction form
    87,681.40/131,522.10 = 59,687.80/x
  3. Step 3: Cross multiply
    87,681.40x = 131,522.10 × 59,687.80
  4. Step 4: Simplify right side
    87,681.40x = 7,850,264,800.38
  5. Step 5: Solve for x
    x = 7,850,264,800.38/87,681.40
  6. Step 6: Final answer
    x = 89,531.70

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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.