Home / 80,344.05-120,517.26-30,410.74

Finding the Fourth Proportional to 80,344.05, 120,517.26 and 30,410.74

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Solution

The fourth proportional to 80,344.05, 120,517.26 and 30,410.74 is: 45,616.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,344.05 : 120,517.26 = 30,410.74 : x
  2. Step 2: Convert to fraction form
    80,344.05/120,517.26 = 30,410.74/x
  3. Step 3: Cross multiply
    80,344.05x = 120,517.26 × 30,410.74
  4. Step 4: Simplify right side
    80,344.05x = 3,665,018,569.77
  5. Step 5: Solve for x
    x = 3,665,018,569.77/80,344.05
  6. Step 6: Final answer
    x = 45,616.55

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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.