Home / 87,836.19-131,778.78-28,675.41

Finding the Fourth Proportional to 87,836.19, 131,778.78 and 28,675.41

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Solution

The fourth proportional to 87,836.19, 131,778.78 and 28,675.41 is: 43,021.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,836.19 : 131,778.78 = 28,675.41 : x
  2. Step 2: Convert to fraction form
    87,836.19/131,778.78 = 28,675.41/x
  3. Step 3: Cross multiply
    87,836.19x = 131,778.78 × 28,675.41
  4. Step 4: Simplify right side
    87,836.19x = 3,778,810,545.80
  5. Step 5: Solve for x
    x = 3,778,810,545.80/87,836.19
  6. Step 6: Final answer
    x = 43,021.11

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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.