Home / 49,969.20-74,982.60-18,826.80

Finding the Fourth Proportional to 49,969.20, 74,982.60 and 18,826.80

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Solution

The fourth proportional to 49,969.20, 74,982.60 and 18,826.80 is: 28,251.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,969.20 : 74,982.60 = 18,826.80 : x
  2. Step 2: Convert to fraction form
    49,969.20/74,982.60 = 18,826.80/x
  3. Step 3: Cross multiply
    49,969.20x = 74,982.60 × 18,826.80
  4. Step 4: Simplify right side
    49,969.20x = 1,411,682,413.68
  5. Step 5: Solve for x
    x = 1,411,682,413.68/49,969.20
  6. Step 6: Final answer
    x = 28,251.05

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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.