Home / 87,414.78-131,080.23-40,015.20

Finding the Fourth Proportional to 87,414.78, 131,080.23 and 40,015.20

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Solution

The fourth proportional to 87,414.78, 131,080.23 and 40,015.20 is: 60,003.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,414.78 : 131,080.23 = 40,015.20 : x
  2. Step 2: Convert to fraction form
    87,414.78/131,080.23 = 40,015.20/x
  3. Step 3: Cross multiply
    87,414.78x = 131,080.23 × 40,015.20
  4. Step 4: Simplify right side
    87,414.78x = 5,245,201,619.50
  5. Step 5: Solve for x
    x = 5,245,201,619.50/87,414.78
  6. Step 6: Final answer
    x = 60,003.60

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1.5x scale

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.