Home / 83,981.94-115,910.19-48,183.81

Finding the Fourth Proportional to 83,981.94, 115,910.19 and 48,183.81

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Solution

The fourth proportional to 83,981.94, 115,910.19 and 48,183.81 is: 66,502.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,981.94 : 115,910.19 = 48,183.81 : x
  2. Step 2: Convert to fraction form
    83,981.94/115,910.19 = 48,183.81/x
  3. Step 3: Cross multiply
    83,981.94x = 115,910.19 × 48,183.81
  4. Step 4: Simplify right side
    83,981.94x = 5,584,994,572.02
  5. Step 5: Solve for x
    x = 5,584,994,572.02/83,981.94
  6. Step 6: Final answer
    x = 66,502.33

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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.