Home / 90,372.20-135,461.10-34,190.60

Finding the Fourth Proportional to 90,372.20, 135,461.10 and 34,190.60

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Solution

The fourth proportional to 90,372.20, 135,461.10 and 34,190.60 is: 51,249.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,372.20 : 135,461.10 = 34,190.60 : x
  2. Step 2: Convert to fraction form
    90,372.20/135,461.10 = 34,190.60/x
  3. Step 3: Cross multiply
    90,372.20x = 135,461.10 × 34,190.60
  4. Step 4: Simplify right side
    90,372.20x = 4,631,496,285.66
  5. Step 5: Solve for x
    x = 4,631,496,285.66/90,372.20
  6. Step 6: Final answer
    x = 51,249.13

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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.