Home / 89,046.38-133,634.91-71,725.34

Finding the Fourth Proportional to 89,046.38, 133,634.91 and 71,725.34

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Solution

The fourth proportional to 89,046.38, 133,634.91 and 71,725.34 is: 107,640.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,046.38 : 133,634.91 = 71,725.34 : x
  2. Step 2: Convert to fraction form
    89,046.38/133,634.91 = 71,725.34/x
  3. Step 3: Cross multiply
    89,046.38x = 133,634.91 × 71,725.34
  4. Step 4: Simplify right side
    89,046.38x = 9,585,009,355.62
  5. Step 5: Solve for x
    x = 9,585,009,355.62/89,046.38
  6. Step 6: Final answer
    x = 107,640.64

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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.