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Finding the Fourth Proportional to 40,413.60, 60,620.40 and 33,998.40

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Solution

The fourth proportional to 40,413.60, 60,620.40 and 33,998.40 is: 50,997.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,413.60 : 60,620.40 = 33,998.40 : x
  2. Step 2: Convert to fraction form
    40,413.60/60,620.40 = 33,998.40/x
  3. Step 3: Cross multiply
    40,413.60x = 60,620.40 × 33,998.40
  4. Step 4: Simplify right side
    40,413.60x = 2,060,996,607.36
  5. Step 5: Solve for x
    x = 2,060,996,607.36/40,413.60
  6. Step 6: Final answer
    x = 50,997.60

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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.