Home / 69,129.19-95,372.19-40,439.71

Finding the Fourth Proportional to 69,129.19, 95,372.19 and 40,439.71

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Solution

The fourth proportional to 69,129.19, 95,372.19 and 40,439.71 is: 55,791.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,129.19 : 95,372.19 = 40,439.71 : x
  2. Step 2: Convert to fraction form
    69,129.19/95,372.19 = 40,439.71/x
  3. Step 3: Cross multiply
    69,129.19x = 95,372.19 × 40,439.71
  4. Step 4: Simplify right side
    69,129.19x = 3,856,823,705.66
  5. Step 5: Solve for x
    x = 3,856,823,705.66/69,129.19
  6. Step 6: Final answer
    x = 55,791.54

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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.