Home / 66,413.45-91,650.63-36,198.80

Finding the Fourth Proportional to 66,413.45, 91,650.63 and 36,198.80

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Solution

The fourth proportional to 66,413.45, 91,650.63 and 36,198.80 is: 49,954.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,413.45 : 91,650.63 = 36,198.80 : x
  2. Step 2: Convert to fraction form
    66,413.45/91,650.63 = 36,198.80/x
  3. Step 3: Cross multiply
    66,413.45x = 91,650.63 × 36,198.80
  4. Step 4: Simplify right side
    66,413.45x = 3,317,642,825.24
  5. Step 5: Solve for x
    x = 3,317,642,825.24/66,413.45
  6. Step 6: Final answer
    x = 49,954.38

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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.