Home / 68,604.26-102,908.16-18,685.35

Finding the Fourth Proportional to 68,604.26, 102,908.16 and 18,685.35

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Solution

The fourth proportional to 68,604.26, 102,908.16 and 18,685.35 is: 28,028.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,604.26 : 102,908.16 = 18,685.35 : x
  2. Step 2: Convert to fraction form
    68,604.26/102,908.16 = 18,685.35/x
  3. Step 3: Cross multiply
    68,604.26x = 102,908.16 × 18,685.35
  4. Step 4: Simplify right side
    68,604.26x = 1,922,874,987.46
  5. Step 5: Solve for x
    x = 1,922,874,987.46/68,604.26
  6. Step 6: Final answer
    x = 28,028.51

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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.