Home / 49,920.96-68,890.92-28,704.40

Finding the Fourth Proportional to 49,920.96, 68,890.92 and 28,704.40

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Solution

The fourth proportional to 49,920.96, 68,890.92 and 28,704.40 is: 39,612.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,920.96 : 68,890.92 = 28,704.40 : x
  2. Step 2: Convert to fraction form
    49,920.96/68,890.92 = 28,704.40/x
  3. Step 3: Cross multiply
    49,920.96x = 68,890.92 × 28,704.40
  4. Step 4: Simplify right side
    49,920.96x = 1,977,472,524.05
  5. Step 5: Solve for x
    x = 1,977,472,524.05/49,920.96
  6. Step 6: Final answer
    x = 39,612.07

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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.