Home / 75,851.73-113,713.33-31,450.77

Finding the Fourth Proportional to 75,851.73, 113,713.33 and 31,450.77

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Solution

The fourth proportional to 75,851.73, 113,713.33 and 31,450.77 is: 47,149.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,851.73 : 113,713.33 = 31,450.77 : x
  2. Step 2: Convert to fraction form
    75,851.73/113,713.33 = 31,450.77/x
  3. Step 3: Cross multiply
    75,851.73x = 113,713.33 × 31,450.77
  4. Step 4: Simplify right side
    75,851.73x = 3,576,371,787.76
  5. Step 5: Solve for x
    x = 3,576,371,787.76/75,851.73
  6. Step 6: Final answer
    x = 47,149.51

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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.