Home / 65,608.23-90,517.05-40,126.44

Finding the Fourth Proportional to 65,608.23, 90,517.05 and 40,126.44

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Solution

The fourth proportional to 65,608.23, 90,517.05 and 40,126.44 is: 55,360.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,608.23 : 90,517.05 = 40,126.44 : x
  2. Step 2: Convert to fraction form
    65,608.23/90,517.05 = 40,126.44/x
  3. Step 3: Cross multiply
    65,608.23x = 90,517.05 × 40,126.44
  4. Step 4: Simplify right side
    65,608.23x = 3,632,126,975.80
  5. Step 5: Solve for x
    x = 3,632,126,975.80/65,608.23
  6. Step 6: Final answer
    x = 55,360.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.