Home / 77,229.16-115,860.71-43,964.80

Finding the Fourth Proportional to 77,229.16, 115,860.71 and 43,964.80

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Solution

The fourth proportional to 77,229.16, 115,860.71 and 43,964.80 is: 65,956.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,229.16 : 115,860.71 = 43,964.80 : x
  2. Step 2: Convert to fraction form
    77,229.16/115,860.71 = 43,964.80/x
  3. Step 3: Cross multiply
    77,229.16x = 115,860.71 × 43,964.80
  4. Step 4: Simplify right side
    77,229.16x = 5,093,792,473.62
  5. Step 5: Solve for x
    x = 5,093,792,473.62/77,229.16
  6. Step 6: Final answer
    x = 65,956.86

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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.