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Finding the Fourth Proportional to 81.76, 112.83 and 44.92

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Solution

The fourth proportional to 81.76, 112.83 and 44.92 is: 61.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    81.76 : 112.83 = 44.92 : x
  2. Step 2: Convert to fraction form
    81.76/112.83 = 44.92/x
  3. Step 3: Cross multiply
    81.76x = 112.83 × 44.92
  4. Step 4: Simplify right side
    81.76x = 5,068.32
  5. Step 5: Solve for x
    x = 5,068.32/81.76
  6. Step 6: Final answer
    x = 61.99

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