Home / 89,910.34-124,081.92-51,682.12

Finding the Fourth Proportional to 89,910.34, 124,081.92 and 51,682.12

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Solution

The fourth proportional to 89,910.34, 124,081.92 and 51,682.12 is: 71,324.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,910.34 : 124,081.92 = 51,682.12 : x
  2. Step 2: Convert to fraction form
    89,910.34/124,081.92 = 51,682.12/x
  3. Step 3: Cross multiply
    89,910.34x = 124,081.92 × 51,682.12
  4. Step 4: Simplify right side
    89,910.34x = 6,412,816,679.27
  5. Step 5: Solve for x
    x = 6,412,816,679.27/89,910.34
  6. Step 6: Final answer
    x = 71,324.57

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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.