Home / 55,321.86-76,343.82-31,448.54

Finding the Fourth Proportional to 55,321.86, 76,343.82 and 31,448.54

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Solution

The fourth proportional to 55,321.86, 76,343.82 and 31,448.54 is: 43,398.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,321.86 : 76,343.82 = 31,448.54 : x
  2. Step 2: Convert to fraction form
    55,321.86/76,343.82 = 31,448.54/x
  3. Step 3: Cross multiply
    55,321.86x = 76,343.82 × 31,448.54
  4. Step 4: Simplify right side
    55,321.86x = 2,400,901,295.30
  5. Step 5: Solve for x
    x = 2,400,901,295.30/55,321.86
  6. Step 6: Final answer
    x = 43,398.78

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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.