Home / 87,480.56-131,287.80-45,395.12

Finding the Fourth Proportional to 87,480.56, 131,287.80 and 45,395.12

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Solution

The fourth proportional to 87,480.56, 131,287.80 and 45,395.12 is: 68,127.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,480.56 : 131,287.80 = 45,395.12 : x
  2. Step 2: Convert to fraction form
    87,480.56/131,287.80 = 45,395.12/x
  3. Step 3: Cross multiply
    87,480.56x = 131,287.80 × 45,395.12
  4. Step 4: Simplify right side
    87,480.56x = 5,959,825,435.54
  5. Step 5: Solve for x
    x = 5,959,825,435.54/87,480.56
  6. Step 6: Final answer
    x = 68,127.43

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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.