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Finding the Fourth Proportional to 70,890.24, 106,233.60 and 55,020.80

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Solution

The fourth proportional to 70,890.24, 106,233.60 and 55,020.80 is: 82,452.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,890.24 : 106,233.60 = 55,020.80 : x
  2. Step 2: Convert to fraction form
    70,890.24/106,233.60 = 55,020.80/x
  3. Step 3: Cross multiply
    70,890.24x = 106,233.60 × 55,020.80
  4. Step 4: Simplify right side
    70,890.24x = 5,845,057,658.88
  5. Step 5: Solve for x
    x = 5,845,057,658.88/70,890.24
  6. Step 6: Final answer
    x = 82,452.22

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