Home / 36,105.78-49,819.55-20,190.36

Finding the Fourth Proportional to 36,105.78, 49,819.55 and 20,190.36

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Solution

The fourth proportional to 36,105.78, 49,819.55 and 20,190.36 is: 27,859.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,105.78 : 49,819.55 = 20,190.36 : x
  2. Step 2: Convert to fraction form
    36,105.78/49,819.55 = 20,190.36/x
  3. Step 3: Cross multiply
    36,105.78x = 49,819.55 × 20,190.36
  4. Step 4: Simplify right side
    36,105.78x = 1,005,874,548.59
  5. Step 5: Solve for x
    x = 1,005,874,548.59/36,105.78
  6. Step 6: Final answer
    x = 27,859.10

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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.