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Finding the Fourth Proportional to 83,633.41, 125,449.02 and 20,454.08

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Solution

The fourth proportional to 83,633.41, 125,449.02 and 20,454.08 is: 30,680.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,633.41 : 125,449.02 = 20,454.08 : x
  2. Step 2: Convert to fraction form
    83,633.41/125,449.02 = 20,454.08/x
  3. Step 3: Cross multiply
    83,633.41x = 125,449.02 × 20,454.08
  4. Step 4: Simplify right side
    83,633.41x = 2,565,943,663.76
  5. Step 5: Solve for x
    x = 2,565,943,663.76/83,633.41
  6. Step 6: Final answer
    x = 30,680.85

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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.