Home / 99,961.42-137,944.20-54,639.52

Finding the Fourth Proportional to 99,961.42, 137,944.20 and 54,639.52

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Solution

The fourth proportional to 99,961.42, 137,944.20 and 54,639.52 is: 75,401.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,961.42 : 137,944.20 = 54,639.52 : x
  2. Step 2: Convert to fraction form
    99,961.42/137,944.20 = 54,639.52/x
  3. Step 3: Cross multiply
    99,961.42x = 137,944.20 × 54,639.52
  4. Step 4: Simplify right side
    99,961.42x = 7,537,204,874.78
  5. Step 5: Solve for x
    x = 7,537,204,874.78/99,961.42
  6. Step 6: Final answer
    x = 75,401.14

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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.