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Finding the Fourth Proportional to 80,830.56, 111,592.44 and 54,018.48

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Solution

The fourth proportional to 80,830.56, 111,592.44 and 54,018.48 is: 74,576.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,830.56 : 111,592.44 = 54,018.48 : x
  2. Step 2: Convert to fraction form
    80,830.56/111,592.44 = 54,018.48/x
  3. Step 3: Cross multiply
    80,830.56x = 111,592.44 × 54,018.48
  4. Step 4: Simplify right side
    80,830.56x = 6,028,053,988.29
  5. Step 5: Solve for x
    x = 6,028,053,988.29/80,830.56
  6. Step 6: Final answer
    x = 74,576.42

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