Home / 87,865.59-131,771.15-31,698.41

Finding the Fourth Proportional to 87,865.59, 131,771.15 and 31,698.41

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Solution

The fourth proportional to 87,865.59, 131,771.15 and 31,698.41 is: 47,537.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,865.59 : 131,771.15 = 31,698.41 : x
  2. Step 2: Convert to fraction form
    87,865.59/131,771.15 = 31,698.41/x
  3. Step 3: Cross multiply
    87,865.59x = 131,771.15 × 31,698.41
  4. Step 4: Simplify right side
    87,865.59x = 4,176,935,240.39
  5. Step 5: Solve for x
    x = 4,176,935,240.39/87,865.59
  6. Step 6: Final answer
    x = 47,537.78

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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.