Home / 83,424.12-125,135.13-20,244.78

Finding the Fourth Proportional to 83,424.12, 125,135.13 and 20,244.78

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Solution

The fourth proportional to 83,424.12, 125,135.13 and 20,244.78 is: 30,366.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,424.12 : 125,135.13 = 20,244.78 : x
  2. Step 2: Convert to fraction form
    83,424.12/125,135.13 = 20,244.78/x
  3. Step 3: Cross multiply
    83,424.12x = 125,135.13 × 20,244.78
  4. Step 4: Simplify right side
    83,424.12x = 2,533,333,177.12
  5. Step 5: Solve for x
    x = 2,533,333,177.12/83,424.12
  6. Step 6: Final answer
    x = 30,366.92

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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.