Home / 31,161.06-46,738.82-7,787.48

Finding the Fourth Proportional to 31,161.06, 46,738.82 and 7,787.48

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Solution

The fourth proportional to 31,161.06, 46,738.82 and 7,787.48 is: 11,680.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,161.06 : 46,738.82 = 7,787.48 : x
  2. Step 2: Convert to fraction form
    31,161.06/46,738.82 = 7,787.48/x
  3. Step 3: Cross multiply
    31,161.06x = 46,738.82 × 7,787.48
  4. Step 4: Simplify right side
    31,161.06x = 363,977,411.75
  5. Step 5: Solve for x
    x = 363,977,411.75/31,161.06
  6. Step 6: Final answer
    x = 11,680.52

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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.