Home / 53,819.43-80,728.50-18,758.97

Finding the Fourth Proportional to 53,819.43, 80,728.50 and 18,758.97

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Solution

The fourth proportional to 53,819.43, 80,728.50 and 18,758.97 is: 28,138.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,819.43 : 80,728.50 = 18,758.97 : x
  2. Step 2: Convert to fraction form
    53,819.43/80,728.50 = 18,758.97/x
  3. Step 3: Cross multiply
    53,819.43x = 80,728.50 × 18,758.97
  4. Step 4: Simplify right side
    53,819.43x = 1,514,383,509.65
  5. Step 5: Solve for x
    x = 1,514,383,509.65/53,819.43
  6. Step 6: Final answer
    x = 28,138.23

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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.