Home / 55,740.12-76,921.42-31,867.31

Finding the Fourth Proportional to 55,740.12, 76,921.42 and 31,867.31

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Solution

The fourth proportional to 55,740.12, 76,921.42 and 31,867.31 is: 43,976.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,740.12 : 76,921.42 = 31,867.31 : x
  2. Step 2: Convert to fraction form
    55,740.12/76,921.42 = 31,867.31/x
  3. Step 3: Cross multiply
    55,740.12x = 76,921.42 × 31,867.31
  4. Step 4: Simplify right side
    55,740.12x = 2,451,278,736.78
  5. Step 5: Solve for x
    x = 2,451,278,736.78/55,740.12
  6. Step 6: Final answer
    x = 43,976.92

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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.