Home / 67,876.91-101,829.99-20,488.04

Finding the Fourth Proportional to 67,876.91, 101,829.99 and 20,488.04

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Solution

The fourth proportional to 67,876.91, 101,829.99 and 20,488.04 is: 30,736.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,876.91 : 101,829.99 = 20,488.04 : x
  2. Step 2: Convert to fraction form
    67,876.91/101,829.99 = 20,488.04/x
  3. Step 3: Cross multiply
    67,876.91x = 101,829.99 × 20,488.04
  4. Step 4: Simplify right side
    67,876.91x = 2,086,296,399.17
  5. Step 5: Solve for x
    x = 2,086,296,399.17/67,876.91
  6. Step 6: Final answer
    x = 30,736.47

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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.