Home / 87,955.44-131,947.20-31,789.88

Finding the Fourth Proportional to 87,955.44, 131,947.20 and 31,789.88

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Solution

The fourth proportional to 87,955.44, 131,947.20 and 31,789.88 is: 47,689.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,955.44 : 131,947.20 = 31,789.88 : x
  2. Step 2: Convert to fraction form
    87,955.44/131,947.20 = 31,789.88/x
  3. Step 3: Cross multiply
    87,955.44x = 131,947.20 × 31,789.88
  4. Step 4: Simplify right side
    87,955.44x = 4,194,585,654.34
  5. Step 5: Solve for x
    x = 4,194,585,654.34/87,955.44
  6. Step 6: Final answer
    x = 47,689.89

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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.