Home / 81,160.38-111,999.24-45,350.69

Finding the Fourth Proportional to 81,160.38, 111,999.24 and 45,350.69

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Solution

The fourth proportional to 81,160.38, 111,999.24 and 45,350.69 is: 62,582.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,160.38 : 111,999.24 = 45,350.69 : x
  2. Step 2: Convert to fraction form
    81,160.38/111,999.24 = 45,350.69/x
  3. Step 3: Cross multiply
    81,160.38x = 111,999.24 × 45,350.69
  4. Step 4: Simplify right side
    81,160.38x = 5,079,242,253.48
  5. Step 5: Solve for x
    x = 5,079,242,253.48/81,160.38
  6. Step 6: Final answer
    x = 62,582.78

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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.