Home / 87,456.84-131,074.50-55,854.69

Finding the Fourth Proportional to 87,456.84, 131,074.50 and 55,854.69

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Solution

The fourth proportional to 87,456.84, 131,074.50 and 55,854.69 is: 83,711.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,456.84 : 131,074.50 = 55,854.69 : x
  2. Step 2: Convert to fraction form
    87,456.84/131,074.50 = 55,854.69/x
  3. Step 3: Cross multiply
    87,456.84x = 131,074.50 × 55,854.69
  4. Step 4: Simplify right side
    87,456.84x = 7,321,125,564.41
  5. Step 5: Solve for x
    x = 7,321,125,564.41/87,456.84
  6. Step 6: Final answer
    x = 83,711.30

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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.