Home / 81,944.39-113,087.09-49,680.02

Finding the Fourth Proportional to 81,944.39, 113,087.09 and 49,680.02

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Solution

The fourth proportional to 81,944.39, 113,087.09 and 49,680.02 is: 68,560.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,944.39 : 113,087.09 = 49,680.02 : x
  2. Step 2: Convert to fraction form
    81,944.39/113,087.09 = 49,680.02/x
  3. Step 3: Cross multiply
    81,944.39x = 113,087.09 × 49,680.02
  4. Step 4: Simplify right side
    81,944.39x = 5,618,168,813.68
  5. Step 5: Solve for x
    x = 5,618,168,813.68/81,944.39
  6. Step 6: Final answer
    x = 68,560.75

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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.