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Finding the Fourth Proportional to 72, 107.96 and 37.73

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Solution

The fourth proportional to 72, 107.96 and 37.73 is: 56.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    72 : 107.96 = 37.73 : x
  2. Step 2: Convert to fraction form
    72/107.96 = 37.73/x
  3. Step 3: Cross multiply
    72x = 107.96 × 37.73
  4. Step 4: Simplify right side
    72x = 4,073.41
  5. Step 5: Solve for x
    x = 4,073.41/72
  6. Step 6: Final answer
    x = 56.58

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