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Finding the Fourth Proportional to 80,292.62, 120,460.82 and 27,709.85

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Solution

The fourth proportional to 80,292.62, 120,460.82 and 27,709.85 is: 41,572.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,292.62 : 120,460.82 = 27,709.85 : x
  2. Step 2: Convert to fraction form
    80,292.62/120,460.82 = 27,709.85/x
  3. Step 3: Cross multiply
    80,292.62x = 120,460.82 × 27,709.85
  4. Step 4: Simplify right side
    80,292.62x = 3,337,950,893.96
  5. Step 5: Solve for x
    x = 3,337,950,893.96/80,292.62
  6. Step 6: Final answer
    x = 41,572.33

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1.5x scale

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.