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Finding the Fourth Proportional to 65.76, 98.57 and 25.17

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Solution

The fourth proportional to 65.76, 98.57 and 25.17 is: 37.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    65.76 : 98.57 = 25.17 : x
  2. Step 2: Convert to fraction form
    65.76/98.57 = 25.17/x
  3. Step 3: Cross multiply
    65.76x = 98.57 × 25.17
  4. Step 4: Simplify right side
    65.76x = 2,480.88
  5. Step 5: Solve for x
    x = 2,480.88/65.76
  6. Step 6: Final answer
    x = 37.73

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