Home / 87,601.80-131,448.60-40,231.20

Finding the Fourth Proportional to 87,601.80, 131,448.60 and 40,231.20

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Solution

The fourth proportional to 87,601.80, 131,448.60 and 40,231.20 is: 60,367.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,601.80 : 131,448.60 = 40,231.20 : x
  2. Step 2: Convert to fraction form
    87,601.80/131,448.60 = 40,231.20/x
  3. Step 3: Cross multiply
    87,601.80x = 131,448.60 × 40,231.20
  4. Step 4: Simplify right side
    87,601.80x = 5,288,334,916.32
  5. Step 5: Solve for x
    x = 5,288,334,916.32/87,601.80
  6. Step 6: Final answer
    x = 60,367.88

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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.