Home / 90,126.05-135,168.08-33,971.76

Finding the Fourth Proportional to 90,126.05, 135,168.08 and 33,971.76

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Solution

The fourth proportional to 90,126.05, 135,168.08 and 33,971.76 is: 50,949.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,126.05 : 135,168.08 = 33,971.76 : x
  2. Step 2: Convert to fraction form
    90,126.05/135,168.08 = 33,971.76/x
  3. Step 3: Cross multiply
    90,126.05x = 135,168.08 × 33,971.76
  4. Step 4: Simplify right side
    90,126.05x = 4,591,897,403.56
  5. Step 5: Solve for x
    x = 4,591,897,403.56/90,126.05
  6. Step 6: Final answer
    x = 50,949.73

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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.