Home / 80,413.26-120,581.55-36,040.38

Finding the Fourth Proportional to 80,413.26, 120,581.55 and 36,040.38

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Solution

The fourth proportional to 80,413.26, 120,581.55 and 36,040.38 is: 54,043.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,413.26 : 120,581.55 = 36,040.38 : x
  2. Step 2: Convert to fraction form
    80,413.26/120,581.55 = 36,040.38/x
  3. Step 3: Cross multiply
    80,413.26x = 120,581.55 × 36,040.38
  4. Step 4: Simplify right side
    80,413.26x = 4,345,804,882.99
  5. Step 5: Solve for x
    x = 4,345,804,882.99/80,413.26
  6. Step 6: Final answer
    x = 54,043.39

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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.