Home / 83,134.20-124,701.30-49,891.80

Finding the Fourth Proportional to 83,134.20, 124,701.30 and 49,891.80

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Solution

The fourth proportional to 83,134.20, 124,701.30 and 49,891.80 is: 74,837.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,134.20 : 124,701.30 = 49,891.80 : x
  2. Step 2: Convert to fraction form
    83,134.20/124,701.30 = 49,891.80/x
  3. Step 3: Cross multiply
    83,134.20x = 124,701.30 × 49,891.80
  4. Step 4: Simplify right side
    83,134.20x = 6,221,572,319.34
  5. Step 5: Solve for x
    x = 6,221,572,319.34/83,134.20
  6. Step 6: Final answer
    x = 74,837.70

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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.