Home / 69,132.72-103,739.32-29,149.19

Finding the Fourth Proportional to 69,132.72, 103,739.32 and 29,149.19

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Solution

The fourth proportional to 69,132.72, 103,739.32 and 29,149.19 is: 43,740.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,132.72 : 103,739.32 = 29,149.19 : x
  2. Step 2: Convert to fraction form
    69,132.72/103,739.32 = 29,149.19/x
  3. Step 3: Cross multiply
    69,132.72x = 103,739.32 × 29,149.19
  4. Step 4: Simplify right side
    69,132.72x = 3,023,917,444.94
  5. Step 5: Solve for x
    x = 3,023,917,444.94/69,132.72
  6. Step 6: Final answer
    x = 43,740.76

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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.