Home / 80,138.22-110,624.78-49,938.46

Finding the Fourth Proportional to 80,138.22, 110,624.78 and 49,938.46

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Solution

The fourth proportional to 80,138.22, 110,624.78 and 49,938.46 is: 68,936.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,138.22 : 110,624.78 = 49,938.46 : x
  2. Step 2: Convert to fraction form
    80,138.22/110,624.78 = 49,938.46/x
  3. Step 3: Cross multiply
    80,138.22x = 110,624.78 × 49,938.46
  4. Step 4: Simplify right side
    80,138.22x = 5,524,431,151.04
  5. Step 5: Solve for x
    x = 5,524,431,151.04/80,138.22
  6. Step 6: Final answer
    x = 68,936.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.