Home / 45,413.88-68,132.34-14,249.40

Finding the Fourth Proportional to 45,413.88, 68,132.34 and 14,249.40

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Solution

The fourth proportional to 45,413.88, 68,132.34 and 14,249.40 is: 21,377.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,413.88 : 68,132.34 = 14,249.40 : x
  2. Step 2: Convert to fraction form
    45,413.88/68,132.34 = 14,249.40/x
  3. Step 3: Cross multiply
    45,413.88x = 68,132.34 × 14,249.40
  4. Step 4: Simplify right side
    45,413.88x = 970,844,965.60
  5. Step 5: Solve for x
    x = 970,844,965.60/45,413.88
  6. Step 6: Final answer
    x = 21,377.71

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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.