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Finding the Fourth Proportional to 39,998.80, 59,911.80 and 33,086.80

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Solution

The fourth proportional to 39,998.80, 59,911.80 and 33,086.80 is: 49,558.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,998.80 : 59,911.80 = 33,086.80 : x
  2. Step 2: Convert to fraction form
    39,998.80/59,911.80 = 33,086.80/x
  3. Step 3: Cross multiply
    39,998.80x = 59,911.80 × 33,086.80
  4. Step 4: Simplify right side
    39,998.80x = 1,982,289,744.24
  5. Step 5: Solve for x
    x = 1,982,289,744.24/39,998.80
  6. Step 6: Final answer
    x = 49,558.73

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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.