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Finding the Fourth Proportional to 55,047.87, 75,967.47 and 31,174.20

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Solution

The fourth proportional to 55,047.87, 75,967.47 and 31,174.20 is: 43,021.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,047.87 : 75,967.47 = 31,174.20 : x
  2. Step 2: Convert to fraction form
    55,047.87/75,967.47 = 31,174.20/x
  3. Step 3: Cross multiply
    55,047.87x = 75,967.47 × 31,174.20
  4. Step 4: Simplify right side
    55,047.87x = 2,368,225,103.27
  5. Step 5: Solve for x
    x = 2,368,225,103.27/55,047.87
  6. Step 6: Final answer
    x = 43,021.19

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