Home / 87,882.44-131,823.65-21,321.50

Finding the Fourth Proportional to 87,882.44, 131,823.65 and 21,321.50

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Solution

The fourth proportional to 87,882.44, 131,823.65 and 21,321.50 is: 31,982.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,882.44 : 131,823.65 = 21,321.50 : x
  2. Step 2: Convert to fraction form
    87,882.44/131,823.65 = 21,321.50/x
  3. Step 3: Cross multiply
    87,882.44x = 131,823.65 × 21,321.50
  4. Step 4: Simplify right side
    87,882.44x = 2,810,677,347.66
  5. Step 5: Solve for x
    x = 2,810,677,347.66/87,882.44
  6. Step 6: Final answer
    x = 31,982.24

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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.