Home / 83,510.88-125,265.24-20,331.12

Finding the Fourth Proportional to 83,510.88, 125,265.24 and 20,331.12

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Solution

The fourth proportional to 83,510.88, 125,265.24 and 20,331.12 is: 30,496.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,510.88 : 125,265.24 = 20,331.12 : x
  2. Step 2: Convert to fraction form
    83,510.88/125,265.24 = 20,331.12/x
  3. Step 3: Cross multiply
    83,510.88x = 125,265.24 × 20,331.12
  4. Step 4: Simplify right side
    83,510.88x = 2,546,782,626.27
  5. Step 5: Solve for x
    x = 2,546,782,626.27/83,510.88
  6. Step 6: Final answer
    x = 30,496.42

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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.