Home / 55,929.09-77,183.46-31,731.69

Finding the Fourth Proportional to 55,929.09, 77,183.46 and 31,731.69

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Solution

The fourth proportional to 55,929.09, 77,183.46 and 31,731.69 is: 43,790.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,929.09 : 77,183.46 = 31,731.69 : x
  2. Step 2: Convert to fraction form
    55,929.09/77,183.46 = 31,731.69/x
  3. Step 3: Cross multiply
    55,929.09x = 77,183.46 × 31,731.69
  4. Step 4: Simplify right side
    55,929.09x = 2,449,161,625.85
  5. Step 5: Solve for x
    x = 2,449,161,625.85/55,929.09
  6. Step 6: Final answer
    x = 43,790.48

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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.