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Finding the Fourth Proportional to 68,463.68, 102,669.60 and 26,888

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Solution

The fourth proportional to 68,463.68, 102,669.60 and 26,888 is: 40,321.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,463.68 : 102,669.60 = 26,888 : x
  2. Step 2: Convert to fraction form
    68,463.68/102,669.60 = 26,888/x
  3. Step 3: Cross multiply
    68,463.68x = 102,669.60 × 26,888
  4. Step 4: Simplify right side
    68,463.68x = 2,760,580,204.80
  5. Step 5: Solve for x
    x = 2,760,580,204.80/68,463.68
  6. Step 6: Final answer
    x = 40,321.82

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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.