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Finding the Fourth Proportional to 50,811, 70,119.05 and 28,150.04

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Solution

The fourth proportional to 50,811, 70,119.05 and 28,150.04 is: 38,846.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,811 : 70,119.05 = 28,150.04 : x
  2. Step 2: Convert to fraction form
    50,811/70,119.05 = 28,150.04/x
  3. Step 3: Cross multiply
    50,811x = 70,119.05 × 28,150.04
  4. Step 4: Simplify right side
    50,811x = 1,973,853,570.92
  5. Step 5: Solve for x
    x = 1,973,853,570.92/50,811
  6. Step 6: Final answer
    x = 38,846.97

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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.