Home / 50,800.44-70,105.17-28,139.78

Finding the Fourth Proportional to 50,800.44, 70,105.17 and 28,139.78

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Solution

The fourth proportional to 50,800.44, 70,105.17 and 28,139.78 is: 38,833.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,800.44 : 70,105.17 = 28,139.78 : x
  2. Step 2: Convert to fraction form
    50,800.44/70,105.17 = 28,139.78/x
  3. Step 3: Cross multiply
    50,800.44x = 70,105.17 × 28,139.78
  4. Step 4: Simplify right side
    50,800.44x = 1,972,743,973.03
  5. Step 5: Solve for x
    x = 1,972,743,973.03/50,800.44
  6. Step 6: Final answer
    x = 38,833.21

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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.