Home / 68,083.35-102,124.97-20,698.82

Finding the Fourth Proportional to 68,083.35, 102,124.97 and 20,698.82

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Solution

The fourth proportional to 68,083.35, 102,124.97 and 20,698.82 is: 31,048.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,083.35 : 102,124.97 = 20,698.82 : x
  2. Step 2: Convert to fraction form
    68,083.35/102,124.97 = 20,698.82/x
  3. Step 3: Cross multiply
    68,083.35x = 102,124.97 × 20,698.82
  4. Step 4: Simplify right side
    68,083.35x = 2,113,866,371.54
  5. Step 5: Solve for x
    x = 2,113,866,371.54/68,083.35
  6. Step 6: Final answer
    x = 31,048.21

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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.