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Finding the Fourth Proportional to 49,540, 68,364.30 and 28,029.52

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Solution

The fourth proportional to 49,540, 68,364.30 and 28,029.52 is: 38,680.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,540 : 68,364.30 = 28,029.52 : x
  2. Step 2: Convert to fraction form
    49,540/68,364.30 = 28,029.52/x
  3. Step 3: Cross multiply
    49,540x = 68,364.30 × 28,029.52
  4. Step 4: Simplify right side
    49,540x = 1,916,218,514.14
  5. Step 5: Solve for x
    x = 1,916,218,514.14/49,540
  6. Step 6: Final answer
    x = 38,680.23

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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.