Home / 83,618.19-115,392.33-45,377.82

Finding the Fourth Proportional to 83,618.19, 115,392.33 and 45,377.82

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Solution

The fourth proportional to 83,618.19, 115,392.33 and 45,377.82 is: 62,620.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,618.19 : 115,392.33 = 45,377.82 : x
  2. Step 2: Convert to fraction form
    83,618.19/115,392.33 = 45,377.82/x
  3. Step 3: Cross multiply
    83,618.19x = 115,392.33 × 45,377.82
  4. Step 4: Simplify right side
    83,618.19x = 5,236,252,380.12
  5. Step 5: Solve for x
    x = 5,236,252,380.12/83,618.19
  6. Step 6: Final answer
    x = 62,620.97

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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.