Home / 36,128.10-54,207.48-19,468.78

Finding the Fourth Proportional to 36,128.10, 54,207.48 and 19,468.78

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Solution

The fourth proportional to 36,128.10, 54,207.48 and 19,468.78 is: 29,211.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,128.10 : 54,207.48 = 19,468.78 : x
  2. Step 2: Convert to fraction form
    36,128.10/54,207.48 = 19,468.78/x
  3. Step 3: Cross multiply
    36,128.10x = 54,207.48 × 19,468.78
  4. Step 4: Simplify right side
    36,128.10x = 1,055,353,502.47
  5. Step 5: Solve for x
    x = 1,055,353,502.47/36,128.10
  6. Step 6: Final answer
    x = 29,211.43

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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.