Home / 91,414.80-137,132.28-29,070.72

Finding the Fourth Proportional to 91,414.80, 137,132.28 and 29,070.72

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Solution

The fourth proportional to 91,414.80, 137,132.28 and 29,070.72 is: 43,609.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,414.80 : 137,132.28 = 29,070.72 : x
  2. Step 2: Convert to fraction form
    91,414.80/137,132.28 = 29,070.72/x
  3. Step 3: Cross multiply
    91,414.80x = 137,132.28 × 29,070.72
  4. Step 4: Simplify right side
    91,414.80x = 3,986,534,114.84
  5. Step 5: Solve for x
    x = 3,986,534,114.84/91,414.80
  6. Step 6: Final answer
    x = 43,609.29

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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.