Home / 45,447.60-68,188.38-20,480.16

Finding the Fourth Proportional to 45,447.60, 68,188.38 and 20,480.16

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Solution

The fourth proportional to 45,447.60, 68,188.38 and 20,480.16 is: 30,727.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,447.60 : 68,188.38 = 20,480.16 : x
  2. Step 2: Convert to fraction form
    45,447.60/68,188.38 = 20,480.16/x
  3. Step 3: Cross multiply
    45,447.60x = 68,188.38 × 20,480.16
  4. Step 4: Simplify right side
    45,447.60x = 1,396,508,932.54
  5. Step 5: Solve for x
    x = 1,396,508,932.54/45,447.60
  6. Step 6: Final answer
    x = 30,727.89

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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.