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Finding the Fourth Proportional to 64,669.68, 89,243.28 and 36,375.39

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Solution

The fourth proportional to 64,669.68, 89,243.28 and 36,375.39 is: 50,197.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,669.68 : 89,243.28 = 36,375.39 : x
  2. Step 2: Convert to fraction form
    64,669.68/89,243.28 = 36,375.39/x
  3. Step 3: Cross multiply
    64,669.68x = 89,243.28 × 36,375.39
  4. Step 4: Simplify right side
    64,669.68x = 3,246,259,114.88
  5. Step 5: Solve for x
    x = 3,246,259,114.88/64,669.68
  6. Step 6: Final answer
    x = 50,197.54

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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.