Home / 66,942.03-100,413.18-20,194.95

Finding the Fourth Proportional to 66,942.03, 100,413.18 and 20,194.95

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Solution

The fourth proportional to 66,942.03, 100,413.18 and 20,194.95 is: 30,292.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,942.03 : 100,413.18 = 20,194.95 : x
  2. Step 2: Convert to fraction form
    66,942.03/100,413.18 = 20,194.95/x
  3. Step 3: Cross multiply
    66,942.03x = 100,413.18 × 20,194.95
  4. Step 4: Simplify right side
    66,942.03x = 2,027,839,149.44
  5. Step 5: Solve for x
    x = 2,027,839,149.44/66,942.03
  6. Step 6: Final answer
    x = 30,292.47

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1.5x scale

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.