Home / 85,109.10-127,625.90-32,481.78

Finding the Fourth Proportional to 85,109.10, 127,625.90 and 32,481.78

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Solution

The fourth proportional to 85,109.10, 127,625.90 and 32,481.78 is: 48,708.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,109.10 : 127,625.90 = 32,481.78 : x
  2. Step 2: Convert to fraction form
    85,109.10/127,625.90 = 32,481.78/x
  3. Step 3: Cross multiply
    85,109.10x = 127,625.90 × 32,481.78
  4. Step 4: Simplify right side
    85,109.10x = 4,145,516,406.10
  5. Step 5: Solve for x
    x = 4,145,516,406.10/85,109.10
  6. Step 6: Final answer
    x = 48,708.26

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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.