Home / 75,721.82-113,583.15-31,324.52

Finding the Fourth Proportional to 75,721.82, 113,583.15 and 31,324.52

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Solution

The fourth proportional to 75,721.82, 113,583.15 and 31,324.52 is: 46,986.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,721.82 : 113,583.15 = 31,324.52 : x
  2. Step 2: Convert to fraction form
    75,721.82/113,583.15 = 31,324.52/x
  3. Step 3: Cross multiply
    75,721.82x = 113,583.15 × 31,324.52
  4. Step 4: Simplify right side
    75,721.82x = 3,557,937,653.84
  5. Step 5: Solve for x
    x = 3,557,937,653.84/75,721.82
  6. Step 6: Final answer
    x = 46,986.95

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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.