Home / 49,910.40-68,883.28-28,689.21

Finding the Fourth Proportional to 49,910.40, 68,883.28 and 28,689.21

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Solution

The fourth proportional to 49,910.40, 68,883.28 and 28,689.21 is: 39,595.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,910.40 : 68,883.28 = 28,689.21 : x
  2. Step 2: Convert to fraction form
    49,910.40/68,883.28 = 28,689.21/x
  3. Step 3: Cross multiply
    49,910.40x = 68,883.28 × 28,689.21
  4. Step 4: Simplify right side
    49,910.40x = 1,976,206,813.69
  5. Step 5: Solve for x
    x = 1,976,206,813.69/49,910.40
  6. Step 6: Final answer
    x = 39,595.09

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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.