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Finding the Fourth Proportional to 50,863.79, 70,192.87 and 28,203.73

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Solution

The fourth proportional to 50,863.79, 70,192.87 and 28,203.73 is: 38,921.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,863.79 : 70,192.87 = 28,203.73 : x
  2. Step 2: Convert to fraction form
    50,863.79/70,192.87 = 28,203.73/x
  3. Step 3: Cross multiply
    50,863.79x = 70,192.87 × 28,203.73
  4. Step 4: Simplify right side
    50,863.79x = 1,979,700,763.88
  5. Step 5: Solve for x
    x = 1,979,700,763.88/50,863.79
  6. Step 6: Final answer
    x = 38,921.62

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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.