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Finding the Fourth Proportional to 110,691.45, 166,019.31 and 31,787.73

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Solution

The fourth proportional to 110,691.45, 166,019.31 and 31,787.73 is: 47,676.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,691.45 : 166,019.31 = 31,787.73 : x
  2. Step 2: Convert to fraction form
    110,691.45/166,019.31 = 31,787.73/x
  3. Step 3: Cross multiply
    110,691.45x = 166,019.31 × 31,787.73
  4. Step 4: Simplify right side
    110,691.45x = 5,277,377,001.07
  5. Step 5: Solve for x
    x = 5,277,377,001.07/110,691.45
  6. Step 6: Final answer
    x = 47,676.46

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