Home / 79,032.52-109,171.38-63,229.96

Finding the Fourth Proportional to 79,032.52, 109,171.38 and 63,229.96

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Solution

The fourth proportional to 79,032.52, 109,171.38 and 63,229.96 is: 87,342.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,032.52 : 109,171.38 = 63,229.96 : x
  2. Step 2: Convert to fraction form
    79,032.52/109,171.38 = 63,229.96/x
  3. Step 3: Cross multiply
    79,032.52x = 109,171.38 × 63,229.96
  4. Step 4: Simplify right side
    79,032.52x = 6,902,901,990.54
  5. Step 5: Solve for x
    x = 6,902,901,990.54/79,032.52
  6. Step 6: Final answer
    x = 87,342.55

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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.