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Finding the Fourth Proportional to 86.94, 130.39 and 26.06

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Solution

The fourth proportional to 86.94, 130.39 and 26.06 is: 39.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    86.94 : 130.39 = 26.06 : x
  2. Step 2: Convert to fraction form
    86.94/130.39 = 26.06/x
  3. Step 3: Cross multiply
    86.94x = 130.39 × 26.06
  4. Step 4: Simplify right side
    86.94x = 3,397.96
  5. Step 5: Solve for x
    x = 3,397.96/86.94
  6. Step 6: Final answer
    x = 39.08

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