Home / 90,178.62-135,138.52-50,652.60

Finding the Fourth Proportional to 90,178.62, 135,138.52 and 50,652.60

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Solution

The fourth proportional to 90,178.62, 135,138.52 and 50,652.60 is: 75,906.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,178.62 : 135,138.52 = 50,652.60 : x
  2. Step 2: Convert to fraction form
    90,178.62/135,138.52 = 50,652.60/x
  3. Step 3: Cross multiply
    90,178.62x = 135,138.52 × 50,652.60
  4. Step 4: Simplify right side
    90,178.62x = 6,845,117,398.15
  5. Step 5: Solve for x
    x = 6,845,117,398.15/90,178.62
  6. Step 6: Final answer
    x = 75,906.21

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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.