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Finding the Fourth Proportional to 275,892.75, 413,839.13 and 78,900.75

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Solution

The fourth proportional to 275,892.75, 413,839.13 and 78,900.75 is: 118,351.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,892.75 : 413,839.13 = 78,900.75 : x
  2. Step 2: Convert to fraction form
    275,892.75/413,839.13 = 78,900.75/x
  3. Step 3: Cross multiply
    275,892.75x = 413,839.13 × 78,900.75
  4. Step 4: Simplify right side
    275,892.75x = 32,652,217,341.84
  5. Step 5: Solve for x
    x = 32,652,217,341.84/275,892.75
  6. Step 6: Final answer
    x = 118,351.13

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