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Finding the Fourth Proportional to 108.77, 163.17 and 36.63

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Solution

The fourth proportional to 108.77, 163.17 and 36.63 is: 54.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    108.77 : 163.17 = 36.63 : x
  2. Step 2: Convert to fraction form
    108.77/163.17 = 36.63/x
  3. Step 3: Cross multiply
    108.77x = 163.17 × 36.63
  4. Step 4: Simplify right side
    108.77x = 5,976.92
  5. Step 5: Solve for x
    x = 5,976.92/108.77
  6. Step 6: Final answer
    x = 54.95

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