Home / 81,470.72-122,039.76-41,944.80

Finding the Fourth Proportional to 81,470.72, 122,039.76 and 41,944.80

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Solution

The fourth proportional to 81,470.72, 122,039.76 and 41,944.80 is: 62,831.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,470.72 : 122,039.76 = 41,944.80 : x
  2. Step 2: Convert to fraction form
    81,470.72/122,039.76 = 41,944.80/x
  3. Step 3: Cross multiply
    81,470.72x = 122,039.76 × 41,944.80
  4. Step 4: Simplify right side
    81,470.72x = 5,118,933,325.25
  5. Step 5: Solve for x
    x = 5,118,933,325.25/81,470.72
  6. Step 6: Final answer
    x = 62,831.57

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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.