Home / 80,540.91-120,811.46-30,609.27

Finding the Fourth Proportional to 80,540.91, 120,811.46 and 30,609.27

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Solution

The fourth proportional to 80,540.91, 120,811.46 and 30,609.27 is: 45,913.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,540.91 : 120,811.46 = 30,609.27 : x
  2. Step 2: Convert to fraction form
    80,540.91/120,811.46 = 30,609.27/x
  3. Step 3: Cross multiply
    80,540.91x = 120,811.46 × 30,609.27
  4. Step 4: Simplify right side
    80,540.91x = 3,697,950,445.19
  5. Step 5: Solve for x
    x = 3,697,950,445.19/80,540.91
  6. Step 6: Final answer
    x = 45,913.94

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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.