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Finding the Fourth Proportional to 71,484.89, 107,227.73 and 18,893.81

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Solution

The fourth proportional to 71,484.89, 107,227.73 and 18,893.81 is: 28,340.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,484.89 : 107,227.73 = 18,893.81 : x
  2. Step 2: Convert to fraction form
    71,484.89/107,227.73 = 18,893.81/x
  3. Step 3: Cross multiply
    71,484.89x = 107,227.73 × 18,893.81
  4. Step 4: Simplify right side
    71,484.89x = 2,025,940,672.66
  5. Step 5: Solve for x
    x = 2,025,940,672.66/71,484.89
  6. Step 6: Final answer
    x = 28,340.83

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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.