Home / 99,961.92-137,944.89-54,640.02

Finding the Fourth Proportional to 99,961.92, 137,944.89 and 54,640.02

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Solution

The fourth proportional to 99,961.92, 137,944.89 and 54,640.02 is: 75,401.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,961.92 : 137,944.89 = 54,640.02 : x
  2. Step 2: Convert to fraction form
    99,961.92/137,944.89 = 54,640.02/x
  3. Step 3: Cross multiply
    99,961.92x = 137,944.89 × 54,640.02
  4. Step 4: Simplify right side
    99,961.92x = 7,537,311,548.50
  5. Step 5: Solve for x
    x = 7,537,311,548.50/99,961.92
  6. Step 6: Final answer
    x = 75,401.83

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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.