Home / 67,963.85-101,945.77-20,578.39

Finding the Fourth Proportional to 67,963.85, 101,945.77 and 20,578.39

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Solution

The fourth proportional to 67,963.85, 101,945.77 and 20,578.39 is: 30,867.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,963.85 : 101,945.77 = 20,578.39 : x
  2. Step 2: Convert to fraction form
    67,963.85/101,945.77 = 20,578.39/x
  3. Step 3: Cross multiply
    67,963.85x = 101,945.77 × 20,578.39
  4. Step 4: Simplify right side
    67,963.85x = 2,097,879,813.91
  5. Step 5: Solve for x
    x = 2,097,879,813.91/67,963.85
  6. Step 6: Final answer
    x = 30,867.58

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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.