Home / 83,372.11-115,042.70-47,559.98

Finding the Fourth Proportional to 83,372.11, 115,042.70 and 47,559.98

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Solution

The fourth proportional to 83,372.11, 115,042.70 and 47,559.98 is: 65,626.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,372.11 : 115,042.70 = 47,559.98 : x
  2. Step 2: Convert to fraction form
    83,372.11/115,042.70 = 47,559.98/x
  3. Step 3: Cross multiply
    83,372.11x = 115,042.70 × 47,559.98
  4. Step 4: Simplify right side
    83,372.11x = 5,471,428,917.65
  5. Step 5: Solve for x
    x = 5,471,428,917.65/83,372.11
  6. Step 6: Final answer
    x = 65,626.61

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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.