Home / 83,884.77-115,716.86-49,869.06

Finding the Fourth Proportional to 83,884.77, 115,716.86 and 49,869.06

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Solution

The fourth proportional to 83,884.77, 115,716.86 and 49,869.06 is: 68,793.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,884.77 : 115,716.86 = 49,869.06 : x
  2. Step 2: Convert to fraction form
    83,884.77/115,716.86 = 49,869.06/x
  3. Step 3: Cross multiply
    83,884.77x = 115,716.86 × 49,869.06
  4. Step 4: Simplify right side
    83,884.77x = 5,770,691,034.35
  5. Step 5: Solve for x
    x = 5,770,691,034.35/83,884.77
  6. Step 6: Final answer
    x = 68,793.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.