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Finding the Fourth Proportional to 73.38, 109.93 and 57.27

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Solution

The fourth proportional to 73.38, 109.93 and 57.27 is: 85.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    73.38 : 109.93 = 57.27 : x
  2. Step 2: Convert to fraction form
    73.38/109.93 = 57.27/x
  3. Step 3: Cross multiply
    73.38x = 109.93 × 57.27
  4. Step 4: Simplify right side
    73.38x = 6,295.69
  5. Step 5: Solve for x
    x = 6,295.69/73.38
  6. Step 6: Final answer
    x = 85.80

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