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Finding the Fourth Proportional to 86.83, 130.22 and 25.94

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Solution

The fourth proportional to 86.83, 130.22 and 25.94 is: 38.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    86.83 : 130.22 = 25.94 : x
  2. Step 2: Convert to fraction form
    86.83/130.22 = 25.94/x
  3. Step 3: Cross multiply
    86.83x = 130.22 × 25.94
  4. Step 4: Simplify right side
    86.83x = 3,377.91
  5. Step 5: Solve for x
    x = 3,377.91/86.83
  6. Step 6: Final answer
    x = 38.90

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