Home / 87,851.52-131,778.90-31,695.84

Finding the Fourth Proportional to 87,851.52, 131,778.90 and 31,695.84

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Solution

The fourth proportional to 87,851.52, 131,778.90 and 31,695.84 is: 47,544.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,851.52 : 131,778.90 = 31,695.84 : x
  2. Step 2: Convert to fraction form
    87,851.52/131,778.90 = 31,695.84/x
  3. Step 3: Cross multiply
    87,851.52x = 131,778.90 × 31,695.84
  4. Step 4: Simplify right side
    87,851.52x = 4,176,842,929.78
  5. Step 5: Solve for x
    x = 4,176,842,929.78/87,851.52
  6. Step 6: Final answer
    x = 47,544.34

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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.