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Finding the Fourth Proportional to 57,799.70, 86,723.85 and 31,523.30

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Solution

The fourth proportional to 57,799.70, 86,723.85 and 31,523.30 is: 47,298.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,799.70 : 86,723.85 = 31,523.30 : x
  2. Step 2: Convert to fraction form
    57,799.70/86,723.85 = 31,523.30/x
  3. Step 3: Cross multiply
    57,799.70x = 86,723.85 × 31,523.30
  4. Step 4: Simplify right side
    57,799.70x = 2,733,821,940.71
  5. Step 5: Solve for x
    x = 2,733,821,940.71/57,799.70
  6. Step 6: Final answer
    x = 47,298.20

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