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Finding the Fourth Proportional to 48,681.20, 73,021.80 and 33,129.20

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Solution

The fourth proportional to 48,681.20, 73,021.80 and 33,129.20 is: 49,693.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,681.20 : 73,021.80 = 33,129.20 : x
  2. Step 2: Convert to fraction form
    48,681.20/73,021.80 = 33,129.20/x
  3. Step 3: Cross multiply
    48,681.20x = 73,021.80 × 33,129.20
  4. Step 4: Simplify right side
    48,681.20x = 2,419,153,816.56
  5. Step 5: Solve for x
    x = 2,419,153,816.56/48,681.20
  6. Step 6: Final answer
    x = 49,693.80

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