Home / 83,481.20-115,210.26-51,668.60

Finding the Fourth Proportional to 83,481.20, 115,210.26 and 51,668.60

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Solution

The fourth proportional to 83,481.20, 115,210.26 and 51,668.60 is: 71,306.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,481.20 : 115,210.26 = 51,668.60 : x
  2. Step 2: Convert to fraction form
    83,481.20/115,210.26 = 51,668.60/x
  3. Step 3: Cross multiply
    83,481.20x = 115,210.26 × 51,668.60
  4. Step 4: Simplify right side
    83,481.20x = 5,952,752,839.84
  5. Step 5: Solve for x
    x = 5,952,752,839.84/83,481.20
  6. Step 6: Final answer
    x = 71,306.51

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1.5x scale

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.