Home / 87,882.92-131,823.20-21,323.60

Finding the Fourth Proportional to 87,882.92, 131,823.20 and 21,323.60

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Solution

The fourth proportional to 87,882.92, 131,823.20 and 21,323.60 is: 31,985.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,882.92 : 131,823.20 = 21,323.60 : x
  2. Step 2: Convert to fraction form
    87,882.92/131,823.20 = 21,323.60/x
  3. Step 3: Cross multiply
    87,882.92x = 131,823.20 × 21,323.60
  4. Step 4: Simplify right side
    87,882.92x = 2,810,944,421.79
  5. Step 5: Solve for x
    x = 2,810,944,421.79/87,882.92
  6. Step 6: Final answer
    x = 31,985.11

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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.