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Finding the Fourth Proportional to 83.97, 115.83 and 67.59

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Solution

The fourth proportional to 83.97, 115.83 and 67.59 is: 93.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    83.97 : 115.83 = 67.59 : x
  2. Step 2: Convert to fraction form
    83.97/115.83 = 67.59/x
  3. Step 3: Cross multiply
    83.97x = 115.83 × 67.59
  4. Step 4: Simplify right side
    83.97x = 7,828.95
  5. Step 5: Solve for x
    x = 7,828.95/83.97
  6. Step 6: Final answer
    x = 93.24

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