Home / 87,720.90-131,588.64-35,101.68

Finding the Fourth Proportional to 87,720.90, 131,588.64 and 35,101.68

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Solution

The fourth proportional to 87,720.90, 131,588.64 and 35,101.68 is: 52,655.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,720.90 : 131,588.64 = 35,101.68 : x
  2. Step 2: Convert to fraction form
    87,720.90/131,588.64 = 35,101.68/x
  3. Step 3: Cross multiply
    87,720.90x = 131,588.64 × 35,101.68
  4. Step 4: Simplify right side
    87,720.90x = 4,618,982,332.92
  5. Step 5: Solve for x
    x = 4,618,982,332.92/87,720.90
  6. Step 6: Final answer
    x = 52,655.44

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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.