Home / 91,177.20-136,780.92-31,997.52

Finding the Fourth Proportional to 91,177.20, 136,780.92 and 31,997.52

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Solution

The fourth proportional to 91,177.20, 136,780.92 and 31,997.52 is: 48,001.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,177.20 : 136,780.92 = 31,997.52 : x
  2. Step 2: Convert to fraction form
    91,177.20/136,780.92 = 31,997.52/x
  3. Step 3: Cross multiply
    91,177.20x = 136,780.92 × 31,997.52
  4. Step 4: Simplify right side
    91,177.20x = 4,376,650,223.32
  5. Step 5: Solve for x
    x = 4,376,650,223.32/91,177.20
  6. Step 6: Final answer
    x = 48,001.59

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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.