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Finding the Fourth Proportional to 57,369.16, 79,164.74 and 31,876.30

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Solution

The fourth proportional to 57,369.16, 79,164.74 and 31,876.30 is: 43,986.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,369.16 : 79,164.74 = 31,876.30 : x
  2. Step 2: Convert to fraction form
    57,369.16/79,164.74 = 31,876.30/x
  3. Step 3: Cross multiply
    57,369.16x = 79,164.74 × 31,876.30
  4. Step 4: Simplify right side
    57,369.16x = 2,523,479,001.66
  5. Step 5: Solve for x
    x = 2,523,479,001.66/57,369.16
  6. Step 6: Final answer
    x = 43,986.68

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