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Finding the Fourth Proportional to 84.73, 127.12 and 30.63

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Solution

The fourth proportional to 84.73, 127.12 and 30.63 is: 45.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    84.73 : 127.12 = 30.63 : x
  2. Step 2: Convert to fraction form
    84.73/127.12 = 30.63/x
  3. Step 3: Cross multiply
    84.73x = 127.12 × 30.63
  4. Step 4: Simplify right side
    84.73x = 3,892.90
  5. Step 5: Solve for x
    x = 3,892.90/84.73
  6. Step 6: Final answer
    x = 45.94

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