Home / 78,791.46-108,741.25-43,869.61

Finding the Fourth Proportional to 78,791.46, 108,741.25 and 43,869.61

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Solution

The fourth proportional to 78,791.46, 108,741.25 and 43,869.61 is: 60,545.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,791.46 : 108,741.25 = 43,869.61 : x
  2. Step 2: Convert to fraction form
    78,791.46/108,741.25 = 43,869.61/x
  3. Step 3: Cross multiply
    78,791.46x = 108,741.25 × 43,869.61
  4. Step 4: Simplify right side
    78,791.46x = 4,770,436,228.41
  5. Step 5: Solve for x
    x = 4,770,436,228.41/78,791.46
  6. Step 6: Final answer
    x = 60,545.09

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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.