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Finding the Fourth Proportional to 68,504, 102,756 and 19,256

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Solution

The fourth proportional to 68,504, 102,756 and 19,256 is: 28,884

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,504 : 102,756 = 19,256 : x
  2. Step 2: Convert to fraction form
    68,504/102,756 = 19,256/x
  3. Step 3: Cross multiply
    68,504x = 102,756 × 19,256
  4. Step 4: Simplify right side
    68,504x = 1,978,669,536
  5. Step 5: Solve for x
    x = 1,978,669,536/68,504
  6. Step 6: Final answer
    x = 28,884

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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.