Home / 80,581.63-120,872.44-30,650.19

Finding the Fourth Proportional to 80,581.63, 120,872.44 and 30,650.19

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Solution

The fourth proportional to 80,581.63, 120,872.44 and 30,650.19 is: 45,975.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,581.63 : 120,872.44 = 30,650.19 : x
  2. Step 2: Convert to fraction form
    80,581.63/120,872.44 = 30,650.19/x
  3. Step 3: Cross multiply
    80,581.63x = 120,872.44 × 30,650.19
  4. Step 4: Simplify right side
    80,581.63x = 3,704,763,251.76
  5. Step 5: Solve for x
    x = 3,704,763,251.76/80,581.63
  6. Step 6: Final answer
    x = 45,975.28

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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.