Home / 85,020.97-117,329.92-48,721.69

Finding the Fourth Proportional to 85,020.97, 117,329.92 and 48,721.69

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Solution

The fourth proportional to 85,020.97, 117,329.92 and 48,721.69 is: 67,236.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,020.97 : 117,329.92 = 48,721.69 : x
  2. Step 2: Convert to fraction form
    85,020.97/117,329.92 = 48,721.69/x
  3. Step 3: Cross multiply
    85,020.97x = 117,329.92 × 48,721.69
  4. Step 4: Simplify right side
    85,020.97x = 5,716,511,746.36
  5. Step 5: Solve for x
    x = 5,716,511,746.36/85,020.97
  6. Step 6: Final answer
    x = 67,236.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.