Home / 90,372.18-135,575.32-34,229.10

Finding the Fourth Proportional to 90,372.18, 135,575.32 and 34,229.10

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Solution

The fourth proportional to 90,372.18, 135,575.32 and 34,229.10 is: 51,350.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,372.18 : 135,575.32 = 34,229.10 : x
  2. Step 2: Convert to fraction form
    90,372.18/135,575.32 = 34,229.10/x
  3. Step 3: Cross multiply
    90,372.18x = 135,575.32 × 34,229.10
  4. Step 4: Simplify right side
    90,372.18x = 4,640,621,185.81
  5. Step 5: Solve for x
    x = 4,640,621,185.81/90,372.18
  6. Step 6: Final answer
    x = 51,350.11

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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.