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Finding the Fourth Proportional to 117.82, 176.60 and 49.38

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Solution

The fourth proportional to 117.82, 176.60 and 49.38 is: 74.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    117.82 : 176.60 = 49.38 : x
  2. Step 2: Convert to fraction form
    117.82/176.60 = 49.38/x
  3. Step 3: Cross multiply
    117.82x = 176.60 × 49.38
  4. Step 4: Simplify right side
    117.82x = 8,719.38
  5. Step 5: Solve for x
    x = 8,719.38/117.82
  6. Step 6: Final answer
    x = 74.01

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