Home / 87,660.88-131,511.98-28,496.59

Finding the Fourth Proportional to 87,660.88, 131,511.98 and 28,496.59

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Solution

The fourth proportional to 87,660.88, 131,511.98 and 28,496.59 is: 42,751.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,660.88 : 131,511.98 = 28,496.59 : x
  2. Step 2: Convert to fraction form
    87,660.88/131,511.98 = 28,496.59/x
  3. Step 3: Cross multiply
    87,660.88x = 131,511.98 × 28,496.59
  4. Step 4: Simplify right side
    87,660.88x = 3,747,642,974.15
  5. Step 5: Solve for x
    x = 3,747,642,974.15/87,660.88
  6. Step 6: Final answer
    x = 42,751.60

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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.