Home / 83,456.80-115,170.24-45,217.32

Finding the Fourth Proportional to 83,456.80, 115,170.24 and 45,217.32

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Solution

The fourth proportional to 83,456.80, 115,170.24 and 45,217.32 is: 62,399.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,456.80 : 115,170.24 = 45,217.32 : x
  2. Step 2: Convert to fraction form
    83,456.80/115,170.24 = 45,217.32/x
  3. Step 3: Cross multiply
    83,456.80x = 115,170.24 × 45,217.32
  4. Step 4: Simplify right side
    83,456.80x = 5,207,689,596.56
  5. Step 5: Solve for x
    x = 5,207,689,596.56/83,456.80
  6. Step 6: Final answer
    x = 62,399.82

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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.