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Finding the Fourth Proportional to 49,347.20, 74,020.80 and 43,644.80

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Solution

The fourth proportional to 49,347.20, 74,020.80 and 43,644.80 is: 65,467.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,347.20 : 74,020.80 = 43,644.80 : x
  2. Step 2: Convert to fraction form
    49,347.20/74,020.80 = 43,644.80/x
  3. Step 3: Cross multiply
    49,347.20x = 74,020.80 × 43,644.80
  4. Step 4: Simplify right side
    49,347.20x = 3,230,623,011.84
  5. Step 5: Solve for x
    x = 3,230,623,011.84/49,347.20
  6. Step 6: Final answer
    x = 65,467.20

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