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Finding the Fourth Proportional to 68,850, 95,172.17 and 57,453.30

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Solution

The fourth proportional to 68,850, 95,172.17 and 57,453.30 is: 79,418.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,850 : 95,172.17 = 57,453.30 : x
  2. Step 2: Convert to fraction form
    68,850/95,172.17 = 57,453.30/x
  3. Step 3: Cross multiply
    68,850x = 95,172.17 × 57,453.30
  4. Step 4: Simplify right side
    68,850x = 5,467,954,947.39
  5. Step 5: Solve for x
    x = 5,467,954,947.39/68,850
  6. Step 6: Final answer
    x = 79,418.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.