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Finding the Fourth Proportional to 50,805.44, 70,119.50 and 30,665.19

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Solution

The fourth proportional to 50,805.44, 70,119.50 and 30,665.19 is: 42,322.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,805.44 : 70,119.50 = 30,665.19 : x
  2. Step 2: Convert to fraction form
    50,805.44/70,119.50 = 30,665.19/x
  3. Step 3: Cross multiply
    50,805.44x = 70,119.50 × 30,665.19
  4. Step 4: Simplify right side
    50,805.44x = 2,150,227,790.21
  5. Step 5: Solve for x
    x = 2,150,227,790.21/50,805.44
  6. Step 6: Final answer
    x = 42,322.79

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Double scale
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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.