Home / 48,665.10-67,133.70-31,431.54

Finding the Fourth Proportional to 48,665.10, 67,133.70 and 31,431.54

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Solution

The fourth proportional to 48,665.10, 67,133.70 and 31,431.54 is: 43,359.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,665.10 : 67,133.70 = 31,431.54 : x
  2. Step 2: Convert to fraction form
    48,665.10/67,133.70 = 31,431.54/x
  3. Step 3: Cross multiply
    48,665.10x = 67,133.70 × 31,431.54
  4. Step 4: Simplify right side
    48,665.10x = 2,110,115,576.90
  5. Step 5: Solve for x
    x = 2,110,115,576.90/48,665.10
  6. Step 6: Final answer
    x = 43,359.94

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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.