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Finding the Fourth Proportional to 83,190.80, 124,786.20 and 33,294.80

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Solution

The fourth proportional to 83,190.80, 124,786.20 and 33,294.80 is: 49,942.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,190.80 : 124,786.20 = 33,294.80 : x
  2. Step 2: Convert to fraction form
    83,190.80/124,786.20 = 33,294.80/x
  3. Step 3: Cross multiply
    83,190.80x = 124,786.20 × 33,294.80
  4. Step 4: Simplify right side
    83,190.80x = 4,154,731,571.76
  5. Step 5: Solve for x
    x = 4,154,731,571.76/83,190.80
  6. Step 6: Final answer
    x = 49,942.20

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