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Finding the Fourth Proportional to 73.28, 100.97 and 54.85

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Solution

The fourth proportional to 73.28, 100.97 and 54.85 is: 75.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    73.28 : 100.97 = 54.85 : x
  2. Step 2: Convert to fraction form
    73.28/100.97 = 54.85/x
  3. Step 3: Cross multiply
    73.28x = 100.97 × 54.85
  4. Step 4: Simplify right side
    73.28x = 5,538.20
  5. Step 5: Solve for x
    x = 5,538.20/73.28
  6. Step 6: Final answer
    x = 75.58

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