Home / 45,110.96-67,659.72-11,831.60

Finding the Fourth Proportional to 45,110.96, 67,659.72 and 11,831.60

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Solution

The fourth proportional to 45,110.96, 67,659.72 and 11,831.60 is: 17,745.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,110.96 : 67,659.72 = 11,831.60 : x
  2. Step 2: Convert to fraction form
    45,110.96/67,659.72 = 11,831.60/x
  3. Step 3: Cross multiply
    45,110.96x = 67,659.72 × 11,831.60
  4. Step 4: Simplify right side
    45,110.96x = 800,522,743.15
  5. Step 5: Solve for x
    x = 800,522,743.15/45,110.96
  6. Step 6: Final answer
    x = 17,745.64

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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.