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Finding the Fourth Proportional to 112.76, 168.96 and 58.62

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Solution

The fourth proportional to 112.76, 168.96 and 58.62 is: 87.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    112.76 : 168.96 = 58.62 : x
  2. Step 2: Convert to fraction form
    112.76/168.96 = 58.62/x
  3. Step 3: Cross multiply
    112.76x = 168.96 × 58.62
  4. Step 4: Simplify right side
    112.76x = 9,904.44
  5. Step 5: Solve for x
    x = 9,904.44/112.76
  6. Step 6: Final answer
    x = 87.84

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