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Finding the Fourth Proportional to 80,015.42, 120,037.71 and 27,413.21

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Solution

The fourth proportional to 80,015.42, 120,037.71 and 27,413.21 is: 41,124.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,015.42 : 120,037.71 = 27,413.21 : x
  2. Step 2: Convert to fraction form
    80,015.42/120,037.71 = 27,413.21/x
  3. Step 3: Cross multiply
    80,015.42x = 120,037.71 × 27,413.21
  4. Step 4: Simplify right side
    80,015.42x = 3,290,619,355.04
  5. Step 5: Solve for x
    x = 3,290,619,355.04/80,015.42
  6. Step 6: Final answer
    x = 41,124.81

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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.