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Finding the Fourth Proportional to 80,359.56, 120,495.18 and 63,825.48

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Solution

The fourth proportional to 80,359.56, 120,495.18 and 63,825.48 is: 95,703.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,359.56 : 120,495.18 = 63,825.48 : x
  2. Step 2: Convert to fraction form
    80,359.56/120,495.18 = 63,825.48/x
  3. Step 3: Cross multiply
    80,359.56x = 120,495.18 × 63,825.48
  4. Step 4: Simplify right side
    80,359.56x = 7,690,662,701.19
  5. Step 5: Solve for x
    x = 7,690,662,701.19/80,359.56
  6. Step 6: Final answer
    x = 95,703.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.