Home / 51,831.50-71,433.66-38,997.50

Finding the Fourth Proportional to 51,831.50, 71,433.66 and 38,997.50

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Solution

The fourth proportional to 51,831.50, 71,433.66 and 38,997.50 is: 53,745.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,831.50 : 71,433.66 = 38,997.50 : x
  2. Step 2: Convert to fraction form
    51,831.50/71,433.66 = 38,997.50/x
  3. Step 3: Cross multiply
    51,831.50x = 71,433.66 × 38,997.50
  4. Step 4: Simplify right side
    51,831.50x = 2,785,734,155.85
  5. Step 5: Solve for x
    x = 2,785,734,155.85/51,831.50
  6. Step 6: Final answer
    x = 53,745.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.