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Finding the Fourth Proportional to 80,301.20, 120,410.79 and 29,697.66

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Solution

The fourth proportional to 80,301.20, 120,410.79 and 29,697.66 is: 44,531.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,301.20 : 120,410.79 = 29,697.66 : x
  2. Step 2: Convert to fraction form
    80,301.20/120,410.79 = 29,697.66/x
  3. Step 3: Cross multiply
    80,301.20x = 120,410.79 × 29,697.66
  4. Step 4: Simplify right side
    80,301.20x = 3,575,918,553.26
  5. Step 5: Solve for x
    x = 3,575,918,553.26/80,301.20
  6. Step 6: Final answer
    x = 44,531.32

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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.