Home / 74,413.69-111,626.25-21,104.74

Finding the Fourth Proportional to 74,413.69, 111,626.25 and 21,104.74

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Solution

The fourth proportional to 74,413.69, 111,626.25 and 21,104.74 is: 31,658.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,413.69 : 111,626.25 = 21,104.74 : x
  2. Step 2: Convert to fraction form
    74,413.69/111,626.25 = 21,104.74/x
  3. Step 3: Cross multiply
    74,413.69x = 111,626.25 × 21,104.74
  4. Step 4: Simplify right side
    74,413.69x = 2,355,842,983.43
  5. Step 5: Solve for x
    x = 2,355,842,983.43/74,413.69
  6. Step 6: Final answer
    x = 31,658.73

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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.