Home / 87,720.38-131,588.90-24,540.51

Finding the Fourth Proportional to 87,720.38, 131,588.90 and 24,540.51

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Solution

The fourth proportional to 87,720.38, 131,588.90 and 24,540.51 is: 36,813.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,720.38 : 131,588.90 = 24,540.51 : x
  2. Step 2: Convert to fraction form
    87,720.38/131,588.90 = 24,540.51/x
  3. Step 3: Cross multiply
    87,720.38x = 131,588.90 × 24,540.51
  4. Step 4: Simplify right side
    87,720.38x = 3,229,258,716.34
  5. Step 5: Solve for x
    x = 3,229,258,716.34/87,720.38
  6. Step 6: Final answer
    x = 36,813.10

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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.