Home / 68,797.39-103,185-18,865.89

Finding the Fourth Proportional to 68,797.39, 103,185 and 18,865.89

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Solution

The fourth proportional to 68,797.39, 103,185 and 18,865.89 is: 28,295.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,797.39 : 103,185 = 18,865.89 : x
  2. Step 2: Convert to fraction form
    68,797.39/103,185 = 18,865.89/x
  3. Step 3: Cross multiply
    68,797.39x = 103,185 × 18,865.89
  4. Step 4: Simplify right side
    68,797.39x = 1,946,676,859.65
  5. Step 5: Solve for x
    x = 1,946,676,859.65/68,797.39
  6. Step 6: Final answer
    x = 28,295.80

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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.