Home / 83,140.82-124,711.23-49,819.16

Finding the Fourth Proportional to 83,140.82, 124,711.23 and 49,819.16

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Solution

The fourth proportional to 83,140.82, 124,711.23 and 49,819.16 is: 74,728.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,140.82 : 124,711.23 = 49,819.16 : x
  2. Step 2: Convert to fraction form
    83,140.82/124,711.23 = 49,819.16/x
  3. Step 3: Cross multiply
    83,140.82x = 124,711.23 × 49,819.16
  4. Step 4: Simplify right side
    83,140.82x = 6,213,008,097.61
  5. Step 5: Solve for x
    x = 6,213,008,097.61/83,140.82
  6. Step 6: Final answer
    x = 74,728.74

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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.