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Finding the Fourth Proportional to 57,309.80, 79,086.02 and 31,814.82

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Solution

The fourth proportional to 57,309.80, 79,086.02 and 31,814.82 is: 43,903.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,309.80 : 79,086.02 = 31,814.82 : x
  2. Step 2: Convert to fraction form
    57,309.80/79,086.02 = 31,814.82/x
  3. Step 3: Cross multiply
    57,309.80x = 79,086.02 × 31,814.82
  4. Step 4: Simplify right side
    57,309.80x = 2,516,107,331.74
  5. Step 5: Solve for x
    x = 2,516,107,331.74/57,309.80
  6. Step 6: Final answer
    x = 43,903.62

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