Home / 81,174.32-121,761.17-22,009.82

Finding the Fourth Proportional to 81,174.32, 121,761.17 and 22,009.82

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Solution

The fourth proportional to 81,174.32, 121,761.17 and 22,009.82 is: 33,014.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,174.32 : 121,761.17 = 22,009.82 : x
  2. Step 2: Convert to fraction form
    81,174.32/121,761.17 = 22,009.82/x
  3. Step 3: Cross multiply
    81,174.32x = 121,761.17 × 22,009.82
  4. Step 4: Simplify right side
    81,174.32x = 2,679,941,324.64
  5. Step 5: Solve for x
    x = 2,679,941,324.64/81,174.32
  6. Step 6: Final answer
    x = 33,014.65

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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.