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Finding the Fourth Proportional to 80,318.43, 110,787.48 and 63,296.28

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Solution

The fourth proportional to 80,318.43, 110,787.48 and 63,296.28 is: 87,307.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,318.43 : 110,787.48 = 63,296.28 : x
  2. Step 2: Convert to fraction form
    80,318.43/110,787.48 = 63,296.28/x
  3. Step 3: Cross multiply
    80,318.43x = 110,787.48 × 63,296.28
  4. Step 4: Simplify right side
    80,318.43x = 7,012,435,354.57
  5. Step 5: Solve for x
    x = 7,012,435,354.57/80,318.43
  6. Step 6: Final answer
    x = 87,307.92

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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.