Home / 83,481.08-115,213.38-47,676.20

Finding the Fourth Proportional to 83,481.08, 115,213.38 and 47,676.20

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Solution

The fourth proportional to 83,481.08, 115,213.38 and 47,676.20 is: 65,798.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,481.08 : 115,213.38 = 47,676.20 : x
  2. Step 2: Convert to fraction form
    83,481.08/115,213.38 = 47,676.20/x
  3. Step 3: Cross multiply
    83,481.08x = 115,213.38 × 47,676.20
  4. Step 4: Simplify right side
    83,481.08x = 5,492,936,147.56
  5. Step 5: Solve for x
    x = 5,492,936,147.56/83,481.08
  6. Step 6: Final answer
    x = 65,798.58

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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.