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Finding the Fourth Proportional to 86,054.67, 118,721.44 and 49,749.44

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Solution

The fourth proportional to 86,054.67, 118,721.44 and 49,749.44 is: 68,634.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,054.67 : 118,721.44 = 49,749.44 : x
  2. Step 2: Convert to fraction form
    86,054.67/118,721.44 = 49,749.44/x
  3. Step 3: Cross multiply
    86,054.67x = 118,721.44 × 49,749.44
  4. Step 4: Simplify right side
    86,054.67x = 5,906,324,562.39
  5. Step 5: Solve for x
    x = 5,906,324,562.39/86,054.67
  6. Step 6: Final answer
    x = 68,634.56

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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.