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Finding the Fourth Proportional to 50,882.88, 70,217.10 and 28,221.54

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Solution

The fourth proportional to 50,882.88, 70,217.10 and 28,221.54 is: 38,945.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,882.88 : 70,217.10 = 28,221.54 : x
  2. Step 2: Convert to fraction form
    50,882.88/70,217.10 = 28,221.54/x
  3. Step 3: Cross multiply
    50,882.88x = 70,217.10 × 28,221.54
  4. Step 4: Simplify right side
    50,882.88x = 1,981,634,696.33
  5. Step 5: Solve for x
    x = 1,981,634,696.33/50,882.88
  6. Step 6: Final answer
    x = 38,945.02

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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.