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Finding the Fourth Proportional to 71,674.38, 107,511.92 and 21,754.92

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Solution

The fourth proportional to 71,674.38, 107,511.92 and 21,754.92 is: 32,632.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,674.38 : 107,511.92 = 21,754.92 : x
  2. Step 2: Convert to fraction form
    71,674.38/107,511.92 = 21,754.92/x
  3. Step 3: Cross multiply
    71,674.38x = 107,511.92 × 21,754.92
  4. Step 4: Simplify right side
    71,674.38x = 2,338,913,109.87
  5. Step 5: Solve for x
    x = 2,338,913,109.87/71,674.38
  6. Step 6: Final answer
    x = 32,632.48

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1.5x scale

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.