Home / 81,160.47-111,999.33-45,350.73

Finding the Fourth Proportional to 81,160.47, 111,999.33 and 45,350.73

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Solution

The fourth proportional to 81,160.47, 111,999.33 and 45,350.73 is: 62,582.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,160.47 : 111,999.33 = 45,350.73 : x
  2. Step 2: Convert to fraction form
    81,160.47/111,999.33 = 45,350.73/x
  3. Step 3: Cross multiply
    81,160.47x = 111,999.33 × 45,350.73
  4. Step 4: Simplify right side
    81,160.47x = 5,079,251,375.01
  5. Step 5: Solve for x
    x = 5,079,251,375.01/81,160.47
  6. Step 6: Final answer
    x = 62,582.82

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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.