Home / 54,330.75-74,976.64-31,685.38

Finding the Fourth Proportional to 54,330.75, 74,976.64 and 31,685.38

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Solution

The fourth proportional to 54,330.75, 74,976.64 and 31,685.38 is: 43,725.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,330.75 : 74,976.64 = 31,685.38 : x
  2. Step 2: Convert to fraction form
    54,330.75/74,976.64 = 31,685.38/x
  3. Step 3: Cross multiply
    54,330.75x = 74,976.64 × 31,685.38
  4. Step 4: Simplify right side
    54,330.75x = 2,375,663,062.87
  5. Step 5: Solve for x
    x = 2,375,663,062.87/54,330.75
  6. Step 6: Final answer
    x = 43,725.94

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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.