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Finding the Fourth Proportional to 80,337, 120,579.60 and 40,923.48

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Solution

The fourth proportional to 80,337, 120,579.60 and 40,923.48 is: 61,422.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,337 : 120,579.60 = 40,923.48 : x
  2. Step 2: Convert to fraction form
    80,337/120,579.60 = 40,923.48/x
  3. Step 3: Cross multiply
    80,337x = 120,579.60 × 40,923.48
  4. Step 4: Simplify right side
    80,337x = 4,934,536,849.01
  5. Step 5: Solve for x
    x = 4,934,536,849.01/80,337
  6. Step 6: Final answer
    x = 61,422.97

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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.