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Finding the Fourth Proportional to 67,884, 93,679.92 and 41,388

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Solution

The fourth proportional to 67,884, 93,679.92 and 41,388 is: 57,115.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,884 : 93,679.92 = 41,388 : x
  2. Step 2: Convert to fraction form
    67,884/93,679.92 = 41,388/x
  3. Step 3: Cross multiply
    67,884x = 93,679.92 × 41,388
  4. Step 4: Simplify right side
    67,884x = 3,877,224,528.96
  5. Step 5: Solve for x
    x = 3,877,224,528.96/67,884
  6. Step 6: Final answer
    x = 57,115.44

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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.