Home / 74,356.20-111,572.10-49,413.60

Finding the Fourth Proportional to 74,356.20, 111,572.10 and 49,413.60

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Solution

The fourth proportional to 74,356.20, 111,572.10 and 49,413.60 is: 74,145.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,356.20 : 111,572.10 = 49,413.60 : x
  2. Step 2: Convert to fraction form
    74,356.20/111,572.10 = 49,413.60/x
  3. Step 3: Cross multiply
    74,356.20x = 111,572.10 × 49,413.60
  4. Step 4: Simplify right side
    74,356.20x = 5,513,179,120.56
  5. Step 5: Solve for x
    x = 5,513,179,120.56/74,356.20
  6. Step 6: Final answer
    x = 74,145.52

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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.