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Finding the Fourth Proportional to 73.28, 110 and 55.36

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Solution

The fourth proportional to 73.28, 110 and 55.36 is: 83.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    73.28 : 110 = 55.36 : x
  2. Step 2: Convert to fraction form
    73.28/110 = 55.36/x
  3. Step 3: Cross multiply
    73.28x = 110 × 55.36
  4. Step 4: Simplify right side
    73.28x = 6,089.60
  5. Step 5: Solve for x
    x = 6,089.60/73.28
  6. Step 6: Final answer
    x = 83.10

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