Home / 54,914.91-75,781.76-31,040.75

Finding the Fourth Proportional to 54,914.91, 75,781.76 and 31,040.75

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Solution

The fourth proportional to 54,914.91, 75,781.76 and 31,040.75 is: 42,835.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,914.91 : 75,781.76 = 31,040.75 : x
  2. Step 2: Convert to fraction form
    54,914.91/75,781.76 = 31,040.75/x
  3. Step 3: Cross multiply
    54,914.91x = 75,781.76 × 31,040.75
  4. Step 4: Simplify right side
    54,914.91x = 2,352,322,132.61
  5. Step 5: Solve for x
    x = 2,352,322,132.61/54,914.91
  6. Step 6: Final answer
    x = 42,835.76

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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.