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Finding the Fourth Proportional to 83,489.54, 115,227.38 and 51,668.70

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Solution

The fourth proportional to 83,489.54, 115,227.38 and 51,668.70 is: 71,310.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,489.54 : 115,227.38 = 51,668.70 : x
  2. Step 2: Convert to fraction form
    83,489.54/115,227.38 = 51,668.70/x
  3. Step 3: Cross multiply
    83,489.54x = 115,227.38 × 51,668.70
  4. Step 4: Simplify right side
    83,489.54x = 5,953,648,929.01
  5. Step 5: Solve for x
    x = 5,953,648,929.01/83,489.54
  6. Step 6: Final answer
    x = 71,310.12

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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.