Home / 50,865.14-70,191.05-28,202.80

Finding the Fourth Proportional to 50,865.14, 70,191.05 and 28,202.80

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Solution

The fourth proportional to 50,865.14, 70,191.05 and 28,202.80 is: 38,918.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,865.14 : 70,191.05 = 28,202.80 : x
  2. Step 2: Convert to fraction form
    50,865.14/70,191.05 = 28,202.80/x
  3. Step 3: Cross multiply
    50,865.14x = 70,191.05 × 28,202.80
  4. Step 4: Simplify right side
    50,865.14x = 1,979,584,039.97
  5. Step 5: Solve for x
    x = 1,979,584,039.97/50,865.14
  6. Step 6: Final answer
    x = 38,918.29

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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.