Home / 51,268.68-76,896.66-13,831.80

Finding the Fourth Proportional to 51,268.68, 76,896.66 and 13,831.80

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Solution

The fourth proportional to 51,268.68, 76,896.66 and 13,831.80 is: 20,745.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,268.68 : 76,896.66 = 13,831.80 : x
  2. Step 2: Convert to fraction form
    51,268.68/76,896.66 = 13,831.80/x
  3. Step 3: Cross multiply
    51,268.68x = 76,896.66 × 13,831.80
  4. Step 4: Simplify right side
    51,268.68x = 1,063,619,221.79
  5. Step 5: Solve for x
    x = 1,063,619,221.79/51,268.68
  6. Step 6: Final answer
    x = 20,745.98

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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.