Home / 80,139.23-110,626.16-49,939.46

Finding the Fourth Proportional to 80,139.23, 110,626.16 and 49,939.46

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Solution

The fourth proportional to 80,139.23, 110,626.16 and 49,939.46 is: 68,937.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,139.23 : 110,626.16 = 49,939.46 : x
  2. Step 2: Convert to fraction form
    80,139.23/110,626.16 = 49,939.46/x
  3. Step 3: Cross multiply
    80,139.23x = 110,626.16 × 49,939.46
  4. Step 4: Simplify right side
    80,139.23x = 5,524,609,889.45
  5. Step 5: Solve for x
    x = 5,524,609,889.45/80,139.23
  6. Step 6: Final answer
    x = 68,937.65

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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.