Home / 87,951.51-131,927.26-21,391.68

Finding the Fourth Proportional to 87,951.51, 131,927.26 and 21,391.68

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Solution

The fourth proportional to 87,951.51, 131,927.26 and 21,391.68 is: 32,087.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,951.51 : 131,927.26 = 21,391.68 : x
  2. Step 2: Convert to fraction form
    87,951.51/131,927.26 = 21,391.68/x
  3. Step 3: Cross multiply
    87,951.51x = 131,927.26 × 21,391.68
  4. Step 4: Simplify right side
    87,951.51x = 2,822,145,729.20
  5. Step 5: Solve for x
    x = 2,822,145,729.20/87,951.51
  6. Step 6: Final answer
    x = 32,087.52

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Similar ratio
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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.