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Finding the Fourth Proportional to 48,012.20, 71,996.70 and 18,420.20

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Solution

The fourth proportional to 48,012.20, 71,996.70 and 18,420.20 is: 27,622.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,012.20 : 71,996.70 = 18,420.20 : x
  2. Step 2: Convert to fraction form
    48,012.20/71,996.70 = 18,420.20/x
  3. Step 3: Cross multiply
    48,012.20x = 71,996.70 × 18,420.20
  4. Step 4: Simplify right side
    48,012.20x = 1,326,193,613.34
  5. Step 5: Solve for x
    x = 1,326,193,613.34/48,012.20
  6. Step 6: Final answer
    x = 27,622.01

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