Home / 50,220.75-75,331.04-20,617.73

Finding the Fourth Proportional to 50,220.75, 75,331.04 and 20,617.73

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Solution

The fourth proportional to 50,220.75, 75,331.04 and 20,617.73 is: 30,926.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,220.75 : 75,331.04 = 20,617.73 : x
  2. Step 2: Convert to fraction form
    50,220.75/75,331.04 = 20,617.73/x
  3. Step 3: Cross multiply
    50,220.75x = 75,331.04 × 20,617.73
  4. Step 4: Simplify right side
    50,220.75x = 1,553,155,043.34
  5. Step 5: Solve for x
    x = 1,553,155,043.34/50,220.75
  6. Step 6: Final answer
    x = 30,926.56

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.