Home / 87,629.90-131,432.49-28,466.28

Finding the Fourth Proportional to 87,629.90, 131,432.49 and 28,466.28

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Solution

The fourth proportional to 87,629.90, 131,432.49 and 28,466.28 is: 42,695.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,629.90 : 131,432.49 = 28,466.28 : x
  2. Step 2: Convert to fraction form
    87,629.90/131,432.49 = 28,466.28/x
  3. Step 3: Cross multiply
    87,629.90x = 131,432.49 × 28,466.28
  4. Step 4: Simplify right side
    87,629.90x = 3,741,394,061.44
  5. Step 5: Solve for x
    x = 3,741,394,061.44/87,629.90
  6. Step 6: Final answer
    x = 42,695.41

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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.