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Finding the Fourth Proportional to 84,367.96, 126,614.11 and 39,994.54

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Solution

The fourth proportional to 84,367.96, 126,614.11 and 39,994.54 is: 60,021.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,367.96 : 126,614.11 = 39,994.54 : x
  2. Step 2: Convert to fraction form
    84,367.96/126,614.11 = 39,994.54/x
  3. Step 3: Cross multiply
    84,367.96x = 126,614.11 × 39,994.54
  4. Step 4: Simplify right side
    84,367.96x = 5,063,873,570.12
  5. Step 5: Solve for x
    x = 5,063,873,570.12/84,367.96
  6. Step 6: Final answer
    x = 60,021.29

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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.