Home / 36,609.60-54,979.20-28,309.80

Finding the Fourth Proportional to 36,609.60, 54,979.20 and 28,309.80

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Solution

The fourth proportional to 36,609.60, 54,979.20 and 28,309.80 is: 42,514.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,609.60 : 54,979.20 = 28,309.80 : x
  2. Step 2: Convert to fraction form
    36,609.60/54,979.20 = 28,309.80/x
  3. Step 3: Cross multiply
    36,609.60x = 54,979.20 × 28,309.80
  4. Step 4: Simplify right side
    36,609.60x = 1,556,450,156.16
  5. Step 5: Solve for x
    x = 1,556,450,156.16/36,609.60
  6. Step 6: Final answer
    x = 42,514.81

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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.