Home / 87,691.04-121,029.44-49,462.32

Finding the Fourth Proportional to 87,691.04, 121,029.44 and 49,462.32

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Solution

The fourth proportional to 87,691.04, 121,029.44 and 49,462.32 is: 68,266.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,691.04 : 121,029.44 = 49,462.32 : x
  2. Step 2: Convert to fraction form
    87,691.04/121,029.44 = 49,462.32/x
  3. Step 3: Cross multiply
    87,691.04x = 121,029.44 × 49,462.32
  4. Step 4: Simplify right side
    87,691.04x = 5,986,396,890.70
  5. Step 5: Solve for x
    x = 5,986,396,890.70/87,691.04
  6. Step 6: Final answer
    x = 68,266.92

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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.