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Finding the Fourth Proportional to 42,192, 63,246.60 and 23,481

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Solution

The fourth proportional to 42,192, 63,246.60 and 23,481 is: 35,198.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,192 : 63,246.60 = 23,481 : x
  2. Step 2: Convert to fraction form
    42,192/63,246.60 = 23,481/x
  3. Step 3: Cross multiply
    42,192x = 63,246.60 × 23,481
  4. Step 4: Simplify right side
    42,192x = 1,485,093,414.60
  5. Step 5: Solve for x
    x = 1,485,093,414.60/42,192
  6. Step 6: Final answer
    x = 35,198.46

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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.