Home / 33,120.48-49,685.16-12,057.78

Finding the Fourth Proportional to 33,120.48, 49,685.16 and 12,057.78

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Solution

The fourth proportional to 33,120.48, 49,685.16 and 12,057.78 is: 18,088.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,120.48 : 49,685.16 = 12,057.78 : x
  2. Step 2: Convert to fraction form
    33,120.48/49,685.16 = 12,057.78/x
  3. Step 3: Cross multiply
    33,120.48x = 49,685.16 × 12,057.78
  4. Step 4: Simplify right side
    33,120.48x = 599,092,728.54
  5. Step 5: Solve for x
    x = 599,092,728.54/33,120.48
  6. Step 6: Final answer
    x = 18,088.29

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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.