Home / 80,527.20-120,812.69-27,940.78

Finding the Fourth Proportional to 80,527.20, 120,812.69 and 27,940.78

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Solution

The fourth proportional to 80,527.20, 120,812.69 and 27,940.78 is: 41,918.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,527.20 : 120,812.69 = 27,940.78 : x
  2. Step 2: Convert to fraction form
    80,527.20/120,812.69 = 27,940.78/x
  3. Step 3: Cross multiply
    80,527.20x = 120,812.69 × 27,940.78
  4. Step 4: Simplify right side
    80,527.20x = 3,375,600,792.50
  5. Step 5: Solve for x
    x = 3,375,600,792.50/80,527.20
  6. Step 6: Final answer
    x = 41,918.77

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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.