Home / 81,481.08-112,442.88-45,671.04

Finding the Fourth Proportional to 81,481.08, 112,442.88 and 45,671.04

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Solution

The fourth proportional to 81,481.08, 112,442.88 and 45,671.04 is: 63,025.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,481.08 : 112,442.88 = 45,671.04 : x
  2. Step 2: Convert to fraction form
    81,481.08/112,442.88 = 45,671.04/x
  3. Step 3: Cross multiply
    81,481.08x = 112,442.88 × 45,671.04
  4. Step 4: Simplify right side
    81,481.08x = 5,135,383,270.20
  5. Step 5: Solve for x
    x = 5,135,383,270.20/81,481.08
  6. Step 6: Final answer
    x = 63,025.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.