Home / 71,712.22-99,003.40-54,581.92

Finding the Fourth Proportional to 71,712.22, 99,003.40 and 54,581.92

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Solution

The fourth proportional to 71,712.22, 99,003.40 and 54,581.92 is: 75,353.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,712.22 : 99,003.40 = 54,581.92 : x
  2. Step 2: Convert to fraction form
    71,712.22/99,003.40 = 54,581.92/x
  3. Step 3: Cross multiply
    71,712.22x = 99,003.40 × 54,581.92
  4. Step 4: Simplify right side
    71,712.22x = 5,403,795,658.53
  5. Step 5: Solve for x
    x = 5,403,795,658.53/71,712.22
  6. Step 6: Final answer
    x = 75,353.90

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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.