Home / 81,343.61-112,196.20-49,514.55

Finding the Fourth Proportional to 81,343.61, 112,196.20 and 49,514.55

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Solution

The fourth proportional to 81,343.61, 112,196.20 and 49,514.55 is: 68,294.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,343.61 : 112,196.20 = 49,514.55 : x
  2. Step 2: Convert to fraction form
    81,343.61/112,196.20 = 49,514.55/x
  3. Step 3: Cross multiply
    81,343.61x = 112,196.20 × 49,514.55
  4. Step 4: Simplify right side
    81,343.61x = 5,555,344,107.14
  5. Step 5: Solve for x
    x = 5,555,344,107.14/81,343.61
  6. Step 6: Final answer
    x = 68,294.78

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1.5x scale

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.