Home / 87,868.61-131,775.65-31,701.41

Finding the Fourth Proportional to 87,868.61, 131,775.65 and 31,701.41

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Solution

The fourth proportional to 87,868.61, 131,775.65 and 31,701.41 is: 47,542.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,868.61 : 131,775.65 = 31,701.41 : x
  2. Step 2: Convert to fraction form
    87,868.61/131,775.65 = 31,701.41/x
  3. Step 3: Cross multiply
    87,868.61x = 131,775.65 × 31,701.41
  4. Step 4: Simplify right side
    87,868.61x = 4,177,474,317.36
  5. Step 5: Solve for x
    x = 4,177,474,317.36/87,868.61
  6. Step 6: Final answer
    x = 47,542.29

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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.