Home / 125,042.78-187,563.36-31,548.62

Finding the Fourth Proportional to 125,042.78, 187,563.36 and 31,548.62

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Solution

The fourth proportional to 125,042.78, 187,563.36 and 31,548.62 is: 47,322.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,042.78 : 187,563.36 = 31,548.62 : x
  2. Step 2: Convert to fraction form
    125,042.78/187,563.36 = 31,548.62/x
  3. Step 3: Cross multiply
    125,042.78x = 187,563.36 × 31,548.62
  4. Step 4: Simplify right side
    125,042.78x = 5,917,365,170.56
  5. Step 5: Solve for x
    x = 5,917,365,170.56/125,042.78
  6. Step 6: Final answer
    x = 47,322.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.