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Finding the Fourth Proportional to 81,744.00, 112,805.73 and 45,940.08

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Solution

The fourth proportional to 81,744.00, 112,805.73 and 45,940.08 is: 63,396.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,744.00 : 112,805.73 = 45,940.08 : x
  2. Step 2: Convert to fraction form
    81,744.00/112,805.73 = 45,940.08/x
  3. Step 3: Cross multiply
    81,744.00x = 112,805.73 × 45,940.08
  4. Step 4: Simplify right side
    81,744.00x = 5,182,304,049.15
  5. Step 5: Solve for x
    x = 5,182,304,049.15/81,744.00
  6. Step 6: Final answer
    x = 63,396.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.