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Finding the Fourth Proportional to 50,857.73, 70,187.83 and 28,203.83

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Solution

The fourth proportional to 50,857.73, 70,187.83 and 28,203.83 is: 38,923.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,857.73 : 70,187.83 = 28,203.83 : x
  2. Step 2: Convert to fraction form
    50,857.73/70,187.83 = 28,203.83/x
  3. Step 3: Cross multiply
    50,857.73x = 70,187.83 × 28,203.83
  4. Step 4: Simplify right side
    50,857.73x = 1,979,565,625.39
  5. Step 5: Solve for x
    x = 1,979,565,625.39/50,857.73
  6. Step 6: Final answer
    x = 38,923.59

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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.