Home / 83,454.05-115,166.58-45,727.49

Finding the Fourth Proportional to 83,454.05, 115,166.58 and 45,727.49

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Solution

The fourth proportional to 83,454.05, 115,166.58 and 45,727.49 is: 63,103.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,454.05 : 115,166.58 = 45,727.49 : x
  2. Step 2: Convert to fraction form
    83,454.05/115,166.58 = 45,727.49/x
  3. Step 3: Cross multiply
    83,454.05x = 115,166.58 × 45,727.49
  4. Step 4: Simplify right side
    83,454.05x = 5,266,278,489.74
  5. Step 5: Solve for x
    x = 5,266,278,489.74/83,454.05
  6. Step 6: Final answer
    x = 63,103.93

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Half scale
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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.