Home / 71,865.11-107,747.94-31,862.24

Finding the Fourth Proportional to 71,865.11, 107,747.94 and 31,862.24

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Solution

The fourth proportional to 71,865.11, 107,747.94 and 31,862.24 is: 47,771.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,865.11 : 107,747.94 = 31,862.24 : x
  2. Step 2: Convert to fraction form
    71,865.11/107,747.94 = 31,862.24/x
  3. Step 3: Cross multiply
    71,865.11x = 107,747.94 × 31,862.24
  4. Step 4: Simplify right side
    71,865.11x = 3,433,090,723.79
  5. Step 5: Solve for x
    x = 3,433,090,723.79/71,865.11
  6. Step 6: Final answer
    x = 47,771.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.