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Finding the Fourth Proportional to 68.00, 101.84 and 54.45

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Solution

The fourth proportional to 68.00, 101.84 and 54.45 is: 81.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    68.00 : 101.84 = 54.45 : x
  2. Step 2: Convert to fraction form
    68.00/101.84 = 54.45/x
  3. Step 3: Cross multiply
    68.00x = 101.84 × 54.45
  4. Step 4: Simplify right side
    68.00x = 5,544.92
  5. Step 5: Solve for x
    x = 5,544.92/68.00
  6. Step 6: Final answer
    x = 81.55

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