Home / 56,661.24-84,997.80-19,219.80

Finding the Fourth Proportional to 56,661.24, 84,997.80 and 19,219.80

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Solution

The fourth proportional to 56,661.24, 84,997.80 and 19,219.80 is: 28,831.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,661.24 : 84,997.80 = 19,219.80 : x
  2. Step 2: Convert to fraction form
    56,661.24/84,997.80 = 19,219.80/x
  3. Step 3: Cross multiply
    56,661.24x = 84,997.80 × 19,219.80
  4. Step 4: Simplify right side
    56,661.24x = 1,633,640,716.44
  5. Step 5: Solve for x
    x = 1,633,640,716.44/56,661.24
  6. Step 6: Final answer
    x = 28,831.71

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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.