Home / 68,413.28-94,422.60-40,819.71

Finding the Fourth Proportional to 68,413.28, 94,422.60 and 40,819.71

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Solution

The fourth proportional to 68,413.28, 94,422.60 and 40,819.71 is: 56,338.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,413.28 : 94,422.60 = 40,819.71 : x
  2. Step 2: Convert to fraction form
    68,413.28/94,422.60 = 40,819.71/x
  3. Step 3: Cross multiply
    68,413.28x = 94,422.60 × 40,819.71
  4. Step 4: Simplify right side
    68,413.28x = 3,854,303,149.45
  5. Step 5: Solve for x
    x = 3,854,303,149.45/68,413.28
  6. Step 6: Final answer
    x = 56,338.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.