Home / 40,069.44-60,115.68-11,991.60

Finding the Fourth Proportional to 40,069.44, 60,115.68 and 11,991.60

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Solution

The fourth proportional to 40,069.44, 60,115.68 and 11,991.60 is: 17,990.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,069.44 : 60,115.68 = 11,991.60 : x
  2. Step 2: Convert to fraction form
    40,069.44/60,115.68 = 11,991.60/x
  3. Step 3: Cross multiply
    40,069.44x = 60,115.68 × 11,991.60
  4. Step 4: Simplify right side
    40,069.44x = 720,883,188.29
  5. Step 5: Solve for x
    x = 720,883,188.29/40,069.44
  6. Step 6: Final answer
    x = 17,990.85

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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.