Home / 39,708.30-54,760.33-31,668.71

Finding the Fourth Proportional to 39,708.30, 54,760.33 and 31,668.71

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Solution

The fourth proportional to 39,708.30, 54,760.33 and 31,668.71 is: 43,673.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,708.30 : 54,760.33 = 31,668.71 : x
  2. Step 2: Convert to fraction form
    39,708.30/54,760.33 = 31,668.71/x
  3. Step 3: Cross multiply
    39,708.30x = 54,760.33 × 31,668.71
  4. Step 4: Simplify right side
    39,708.30x = 1,734,188,776.06
  5. Step 5: Solve for x
    x = 1,734,188,776.06/39,708.30
  6. Step 6: Final answer
    x = 43,673.20

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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.