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Finding the Fourth Proportional to 116.28, 174.28 and 58.48

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Solution

The fourth proportional to 116.28, 174.28 and 58.48 is: 87.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    116.28 : 174.28 = 58.48 : x
  2. Step 2: Convert to fraction form
    116.28/174.28 = 58.48/x
  3. Step 3: Cross multiply
    116.28x = 174.28 × 58.48
  4. Step 4: Simplify right side
    116.28x = 10,191.89
  5. Step 5: Solve for x
    x = 10,191.89/116.28
  6. Step 6: Final answer
    x = 87.65

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