Home / 51,542.78-71,163.32-39,584.75

Finding the Fourth Proportional to 51,542.78, 71,163.32 and 39,584.75

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Solution

The fourth proportional to 51,542.78, 71,163.32 and 39,584.75 is: 54,653.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,542.78 : 71,163.32 = 39,584.75 : x
  2. Step 2: Convert to fraction form
    51,542.78/71,163.32 = 39,584.75/x
  3. Step 3: Cross multiply
    51,542.78x = 71,163.32 × 39,584.75
  4. Step 4: Simplify right side
    51,542.78x = 2,816,981,677.63
  5. Step 5: Solve for x
    x = 2,816,981,677.63/51,542.78
  6. Step 6: Final answer
    x = 54,653.28

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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.