Home / 36,090.78-49,806.36-20,175.90

Finding the Fourth Proportional to 36,090.78, 49,806.36 and 20,175.90

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Solution

The fourth proportional to 36,090.78, 49,806.36 and 20,175.90 is: 27,843.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,090.78 : 49,806.36 = 20,175.90 : x
  2. Step 2: Convert to fraction form
    36,090.78/49,806.36 = 20,175.90/x
  3. Step 3: Cross multiply
    36,090.78x = 49,806.36 × 20,175.90
  4. Step 4: Simplify right side
    36,090.78x = 1,004,888,138.72
  5. Step 5: Solve for x
    x = 1,004,888,138.72/36,090.78
  6. Step 6: Final answer
    x = 27,843.35

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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.