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Finding the Fourth Proportional to 51.71, 77.51 and 26.00

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Solution

The fourth proportional to 51.71, 77.51 and 26.00 is: 38.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    51.71 : 77.51 = 26.00 : x
  2. Step 2: Convert to fraction form
    51.71/77.51 = 26.00/x
  3. Step 3: Cross multiply
    51.71x = 77.51 × 26.00
  4. Step 4: Simplify right side
    51.71x = 2,015.66
  5. Step 5: Solve for x
    x = 2,015.66/51.71
  6. Step 6: Final answer
    x = 38.98

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