Home / 80,222.79-120,332.56-27,631.11

Finding the Fourth Proportional to 80,222.79, 120,332.56 and 27,631.11

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Solution

The fourth proportional to 80,222.79, 120,332.56 and 27,631.11 is: 41,446.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,222.79 : 120,332.56 = 27,631.11 : x
  2. Step 2: Convert to fraction form
    80,222.79/120,332.56 = 27,631.11/x
  3. Step 3: Cross multiply
    80,222.79x = 120,332.56 × 27,631.11
  4. Step 4: Simplify right side
    80,222.79x = 3,324,922,201.94
  5. Step 5: Solve for x
    x = 3,324,922,201.94/80,222.79
  6. Step 6: Final answer
    x = 41,446.11

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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.