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Finding the Fourth Proportional to 97.88, 146.68 and 49.80

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Solution

The fourth proportional to 97.88, 146.68 and 49.80 is: 74.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    97.88 : 146.68 = 49.80 : x
  2. Step 2: Convert to fraction form
    97.88/146.68 = 49.80/x
  3. Step 3: Cross multiply
    97.88x = 146.68 × 49.80
  4. Step 4: Simplify right side
    97.88x = 7,304.66
  5. Step 5: Solve for x
    x = 7,304.66/97.88
  6. Step 6: Final answer
    x = 74.63

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