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Finding the Fourth Proportional to 69.02, 103.34 and 48.68

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Solution

The fourth proportional to 69.02, 103.34 and 48.68 is: 72.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    69.02 : 103.34 = 48.68 : x
  2. Step 2: Convert to fraction form
    69.02/103.34 = 48.68/x
  3. Step 3: Cross multiply
    69.02x = 103.34 × 48.68
  4. Step 4: Simplify right side
    69.02x = 5,029.83
  5. Step 5: Solve for x
    x = 5,029.83/69.02
  6. Step 6: Final answer
    x = 72.88

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