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Finding the Fourth Proportional to 68,859.84, 103,293.60 and 19,608

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Solution

The fourth proportional to 68,859.84, 103,293.60 and 19,608 is: 29,413.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,859.84 : 103,293.60 = 19,608 : x
  2. Step 2: Convert to fraction form
    68,859.84/103,293.60 = 19,608/x
  3. Step 3: Cross multiply
    68,859.84x = 103,293.60 × 19,608
  4. Step 4: Simplify right side
    68,859.84x = 2,025,380,908.80
  5. Step 5: Solve for x
    x = 2,025,380,908.80/68,859.84
  6. Step 6: Final answer
    x = 29,413.09

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.