Home / 87,553.30-131,135.55-72,001.30

Finding the Fourth Proportional to 87,553.30, 131,135.55 and 72,001.30

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Solution

The fourth proportional to 87,553.30, 131,135.55 and 72,001.30 is: 107,842.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,553.30 : 131,135.55 = 72,001.30 : x
  2. Step 2: Convert to fraction form
    87,553.30/131,135.55 = 72,001.30/x
  3. Step 3: Cross multiply
    87,553.30x = 131,135.55 × 72,001.30
  4. Step 4: Simplify right side
    87,553.30x = 9,441,930,076.22
  5. Step 5: Solve for x
    x = 9,441,930,076.22/87,553.30
  6. Step 6: Final answer
    x = 107,842.08

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1.5x scale

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.