Home / 99,576.90-137,414.39-54,255.26

Finding the Fourth Proportional to 99,576.90, 137,414.39 and 54,255.26

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Solution

The fourth proportional to 99,576.90, 137,414.39 and 54,255.26 is: 74,871.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,576.90 : 137,414.39 = 54,255.26 : x
  2. Step 2: Convert to fraction form
    99,576.90/137,414.39 = 54,255.26/x
  3. Step 3: Cross multiply
    99,576.90x = 137,414.39 × 54,255.26
  4. Step 4: Simplify right side
    99,576.90x = 7,455,452,982.89
  5. Step 5: Solve for x
    x = 7,455,452,982.89/99,576.90
  6. Step 6: Final answer
    x = 74,871.31

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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.