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Finding the Fourth Proportional to 77,253.92, 106,611.92 and 50,413.60

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Solution

The fourth proportional to 77,253.92, 106,611.92 and 50,413.60 is: 69,571.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,253.92 : 106,611.92 = 50,413.60 : x
  2. Step 2: Convert to fraction form
    77,253.92/106,611.92 = 50,413.60/x
  3. Step 3: Cross multiply
    77,253.92x = 106,611.92 × 50,413.60
  4. Step 4: Simplify right side
    77,253.92x = 5,374,690,690.11
  5. Step 5: Solve for x
    x = 5,374,690,690.11/77,253.92
  6. Step 6: Final answer
    x = 69,571.75

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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.