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Finding the Fourth Proportional to 50,857.26, 70,190.28 and 28,201.29

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Solution

The fourth proportional to 50,857.26, 70,190.28 and 28,201.29 is: 38,921.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,857.26 : 70,190.28 = 28,201.29 : x
  2. Step 2: Convert to fraction form
    50,857.26/70,190.28 = 28,201.29/x
  3. Step 3: Cross multiply
    50,857.26x = 70,190.28 × 28,201.29
  4. Step 4: Simplify right side
    50,857.26x = 1,979,456,441.46
  5. Step 5: Solve for x
    x = 1,979,456,441.46/50,857.26
  6. Step 6: Final answer
    x = 38,921.81

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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.