Home / 87,362.76-131,031.54-39,963.72

Finding the Fourth Proportional to 87,362.76, 131,031.54 and 39,963.72

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Solution

The fourth proportional to 87,362.76, 131,031.54 and 39,963.72 is: 59,939.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,362.76 : 131,031.54 = 39,963.72 : x
  2. Step 2: Convert to fraction form
    87,362.76/131,031.54 = 39,963.72/x
  3. Step 3: Cross multiply
    87,362.76x = 131,031.54 × 39,963.72
  4. Step 4: Simplify right side
    87,362.76x = 5,236,507,775.73
  5. Step 5: Solve for x
    x = 5,236,507,775.73/87,362.76
  6. Step 6: Final answer
    x = 59,939.82

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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.