Home / 115,021.11-172,425.40-61,750.58

Finding the Fourth Proportional to 115,021.11, 172,425.40 and 61,750.58

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Solution

The fourth proportional to 115,021.11, 172,425.40 and 61,750.58 is: 92,568.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,021.11 : 172,425.40 = 61,750.58 : x
  2. Step 2: Convert to fraction form
    115,021.11/172,425.40 = 61,750.58/x
  3. Step 3: Cross multiply
    115,021.11x = 172,425.40 × 61,750.58
  4. Step 4: Simplify right side
    115,021.11x = 10,647,368,456.73
  5. Step 5: Solve for x
    x = 10,647,368,456.73/115,021.11
  6. Step 6: Final answer
    x = 92,568.82

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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.