Home / 51,569.27-71,144.31-31,418.78

Finding the Fourth Proportional to 51,569.27, 71,144.31 and 31,418.78

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Solution

The fourth proportional to 51,569.27, 71,144.31 and 31,418.78 is: 43,344.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,569.27 : 71,144.31 = 31,418.78 : x
  2. Step 2: Convert to fraction form
    51,569.27/71,144.31 = 31,418.78/x
  3. Step 3: Cross multiply
    51,569.27x = 71,144.31 × 31,418.78
  4. Step 4: Simplify right side
    51,569.27x = 2,235,267,424.14
  5. Step 5: Solve for x
    x = 2,235,267,424.14/51,569.27
  6. Step 6: Final answer
    x = 43,344.95

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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.