Home / 36,721.68-55,091.52-11,761.80

Finding the Fourth Proportional to 36,721.68, 55,091.52 and 11,761.80

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Solution

The fourth proportional to 36,721.68, 55,091.52 and 11,761.80 is: 17,645.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,721.68 : 55,091.52 = 11,761.80 : x
  2. Step 2: Convert to fraction form
    36,721.68/55,091.52 = 11,761.80/x
  3. Step 3: Cross multiply
    36,721.68x = 55,091.52 × 11,761.80
  4. Step 4: Simplify right side
    36,721.68x = 647,975,439.94
  5. Step 5: Solve for x
    x = 647,975,439.94/36,721.68
  6. Step 6: Final answer
    x = 17,645.58

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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.