Home / 72,330.15-108,456.30-22,388.79

Finding the Fourth Proportional to 72,330.15, 108,456.30 and 22,388.79

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Solution

The fourth proportional to 72,330.15, 108,456.30 and 22,388.79 is: 33,571.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,330.15 : 108,456.30 = 22,388.79 : x
  2. Step 2: Convert to fraction form
    72,330.15/108,456.30 = 22,388.79/x
  3. Step 3: Cross multiply
    72,330.15x = 108,456.30 × 22,388.79
  4. Step 4: Simplify right side
    72,330.15x = 2,428,205,324.88
  5. Step 5: Solve for x
    x = 2,428,205,324.88/72,330.15
  6. Step 6: Final answer
    x = 33,571.14

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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.