Home / 48,540.96-72,811.92-13,480.80

Finding the Fourth Proportional to 48,540.96, 72,811.92 and 13,480.80

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Solution

The fourth proportional to 48,540.96, 72,811.92 and 13,480.80 is: 20,221.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,540.96 : 72,811.92 = 13,480.80 : x
  2. Step 2: Convert to fraction form
    48,540.96/72,811.92 = 13,480.80/x
  3. Step 3: Cross multiply
    48,540.96x = 72,811.92 × 13,480.80
  4. Step 4: Simplify right side
    48,540.96x = 981,562,931.14
  5. Step 5: Solve for x
    x = 981,562,931.14/48,540.96
  6. Step 6: Final answer
    x = 20,221.33

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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.