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Finding the Fourth Proportional to 41.28, 61.80 and 34.86

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Solution

The fourth proportional to 41.28, 61.80 and 34.86 is: 52.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    41.28 : 61.80 = 34.86 : x
  2. Step 2: Convert to fraction form
    41.28/61.80 = 34.86/x
  3. Step 3: Cross multiply
    41.28x = 61.80 × 34.86
  4. Step 4: Simplify right side
    41.28x = 2,154.35
  5. Step 5: Solve for x
    x = 2,154.35/41.28
  6. Step 6: Final answer
    x = 52.19

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