Home / 90,910.53-136,422.60-34,755.39

Finding the Fourth Proportional to 90,910.53, 136,422.60 and 34,755.39

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Solution

The fourth proportional to 90,910.53, 136,422.60 and 34,755.39 is: 52,154.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,910.53 : 136,422.60 = 34,755.39 : x
  2. Step 2: Convert to fraction form
    90,910.53/136,422.60 = 34,755.39/x
  3. Step 3: Cross multiply
    90,910.53x = 136,422.60 × 34,755.39
  4. Step 4: Simplify right side
    90,910.53x = 4,741,420,667.81
  5. Step 5: Solve for x
    x = 4,741,420,667.81/90,910.53
  6. Step 6: Final answer
    x = 52,154.80

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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.