Home / 81,799.74-112,560.03-68,327.82

Finding the Fourth Proportional to 81,799.74, 112,560.03 and 68,327.82

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Solution

The fourth proportional to 81,799.74, 112,560.03 and 68,327.82 is: 94,022.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,799.74 : 112,560.03 = 68,327.82 : x
  2. Step 2: Convert to fraction form
    81,799.74/112,560.03 = 68,327.82/x
  3. Step 3: Cross multiply
    81,799.74x = 112,560.03 × 68,327.82
  4. Step 4: Simplify right side
    81,799.74x = 7,690,981,469.03
  5. Step 5: Solve for x
    x = 7,690,981,469.03/81,799.74
  6. Step 6: Final answer
    x = 94,022.08

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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.