Home / 99,844.70-137,780.54-54,513.94

Finding the Fourth Proportional to 99,844.70, 137,780.54 and 54,513.94

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Solution

The fourth proportional to 99,844.70, 137,780.54 and 54,513.94 is: 75,226.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,844.70 : 137,780.54 = 54,513.94 : x
  2. Step 2: Convert to fraction form
    99,844.70/137,780.54 = 54,513.94/x
  3. Step 3: Cross multiply
    99,844.70x = 137,780.54 × 54,513.94
  4. Step 4: Simplify right side
    99,844.70x = 7,510,960,090.73
  5. Step 5: Solve for x
    x = 7,510,960,090.73/99,844.70
  6. Step 6: Final answer
    x = 75,226.43

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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.