Home / 81,195.86-112,052.30-45,391.83

Finding the Fourth Proportional to 81,195.86, 112,052.30 and 45,391.83

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Solution

The fourth proportional to 81,195.86, 112,052.30 and 45,391.83 is: 62,641.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,195.86 : 112,052.30 = 45,391.83 : x
  2. Step 2: Convert to fraction form
    81,195.86/112,052.30 = 45,391.83/x
  3. Step 3: Cross multiply
    81,195.86x = 112,052.30 × 45,391.83
  4. Step 4: Simplify right side
    81,195.86x = 5,086,258,725.75
  5. Step 5: Solve for x
    x = 5,086,258,725.75/81,195.86
  6. Step 6: Final answer
    x = 62,641.85

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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.