Home / 36,129.10-54,208.98-19,469.78

Finding the Fourth Proportional to 36,129.10, 54,208.98 and 19,469.78

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Solution

The fourth proportional to 36,129.10, 54,208.98 and 19,469.78 is: 29,212.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,129.10 : 54,208.98 = 19,469.78 : x
  2. Step 2: Convert to fraction form
    36,129.10/54,208.98 = 19,469.78/x
  3. Step 3: Cross multiply
    36,129.10x = 54,208.98 × 19,469.78
  4. Step 4: Simplify right side
    36,129.10x = 1,055,436,914.62
  5. Step 5: Solve for x
    x = 1,055,436,914.62/36,129.10
  6. Step 6: Final answer
    x = 29,212.93

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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.