Home / 80,496.43-120,765.03-56,850.17

Finding the Fourth Proportional to 80,496.43, 120,765.03 and 56,850.17

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Solution

The fourth proportional to 80,496.43, 120,765.03 and 56,850.17 is: 85,289.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,496.43 : 120,765.03 = 56,850.17 : x
  2. Step 2: Convert to fraction form
    80,496.43/120,765.03 = 56,850.17/x
  3. Step 3: Cross multiply
    80,496.43x = 120,765.03 × 56,850.17
  4. Step 4: Simplify right side
    80,496.43x = 6,865,512,201.30
  5. Step 5: Solve for x
    x = 6,865,512,201.30/80,496.43
  6. Step 6: Final answer
    x = 85,289.65

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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.