Home / 67,831.36-101,757.92-21,074.56

Finding the Fourth Proportional to 67,831.36, 101,757.92 and 21,074.56

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Solution

The fourth proportional to 67,831.36, 101,757.92 and 21,074.56 is: 31,615.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,831.36 : 101,757.92 = 21,074.56 : x
  2. Step 2: Convert to fraction form
    67,831.36/101,757.92 = 21,074.56/x
  3. Step 3: Cross multiply
    67,831.36x = 101,757.92 × 21,074.56
  4. Step 4: Simplify right side
    67,831.36x = 2,144,503,390.52
  5. Step 5: Solve for x
    x = 2,144,503,390.52/67,831.36
  6. Step 6: Final answer
    x = 31,615.22

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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.