Home / 68,771.88-94,923.18-40,486.68

Finding the Fourth Proportional to 68,771.88, 94,923.18 and 40,486.68

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Solution

The fourth proportional to 68,771.88, 94,923.18 and 40,486.68 is: 55,882.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,771.88 : 94,923.18 = 40,486.68 : x
  2. Step 2: Convert to fraction form
    68,771.88/94,923.18 = 40,486.68/x
  3. Step 3: Cross multiply
    68,771.88x = 94,923.18 × 40,486.68
  4. Step 4: Simplify right side
    68,771.88x = 3,843,124,413.24
  5. Step 5: Solve for x
    x = 3,843,124,413.24/68,771.88
  6. Step 6: Final answer
    x = 55,882.21

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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.