Home / 87,940.27-131,938.65-28,762.48

Finding the Fourth Proportional to 87,940.27, 131,938.65 and 28,762.48

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Solution

The fourth proportional to 87,940.27, 131,938.65 and 28,762.48 is: 43,152.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,940.27 : 131,938.65 = 28,762.48 : x
  2. Step 2: Convert to fraction form
    87,940.27/131,938.65 = 28,762.48/x
  3. Step 3: Cross multiply
    87,940.27x = 131,938.65 × 28,762.48
  4. Step 4: Simplify right side
    87,940.27x = 3,794,882,781.85
  5. Step 5: Solve for x
    x = 3,794,882,781.85/87,940.27
  6. Step 6: Final answer
    x = 43,152.96

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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.