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Finding the Fourth Proportional to 71,394.80, 107,092.20 and 36,402.80

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Solution

The fourth proportional to 71,394.80, 107,092.20 and 36,402.80 is: 54,604.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,394.80 : 107,092.20 = 36,402.80 : x
  2. Step 2: Convert to fraction form
    71,394.80/107,092.20 = 36,402.80/x
  3. Step 3: Cross multiply
    71,394.80x = 107,092.20 × 36,402.80
  4. Step 4: Simplify right side
    71,394.80x = 3,898,455,938.16
  5. Step 5: Solve for x
    x = 3,898,455,938.16/71,394.80
  6. Step 6: Final answer
    x = 54,604.20

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