Home / 68,181.46-102,286.06-28,738.51

Finding the Fourth Proportional to 68,181.46, 102,286.06 and 28,738.51

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Solution

The fourth proportional to 68,181.46, 102,286.06 and 28,738.51 is: 43,113.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,181.46 : 102,286.06 = 28,738.51 : x
  2. Step 2: Convert to fraction form
    68,181.46/102,286.06 = 28,738.51/x
  3. Step 3: Cross multiply
    68,181.46x = 102,286.06 × 28,738.51
  4. Step 4: Simplify right side
    68,181.46x = 2,939,548,630.61
  5. Step 5: Solve for x
    x = 2,939,548,630.61/68,181.46
  6. Step 6: Final answer
    x = 43,113.61

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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.