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Finding the Fourth Proportional to 79,413.39, 119,123.33 and 20,250.60

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Solution

The fourth proportional to 79,413.39, 119,123.33 and 20,250.60 is: 30,376.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,413.39 : 119,123.33 = 20,250.60 : x
  2. Step 2: Convert to fraction form
    79,413.39/119,123.33 = 20,250.60/x
  3. Step 3: Cross multiply
    79,413.39x = 119,123.33 × 20,250.60
  4. Step 4: Simplify right side
    79,413.39x = 2,412,318,906.50
  5. Step 5: Solve for x
    x = 2,412,318,906.50/79,413.39
  6. Step 6: Final answer
    x = 30,376.73

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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.