Home / 49,860.72-68,814.15-28,358.86

Finding the Fourth Proportional to 49,860.72, 68,814.15 and 28,358.86

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Solution

The fourth proportional to 49,860.72, 68,814.15 and 28,358.86 is: 39,138.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,860.72 : 68,814.15 = 28,358.86 : x
  2. Step 2: Convert to fraction form
    49,860.72/68,814.15 = 28,358.86/x
  3. Step 3: Cross multiply
    49,860.72x = 68,814.15 × 28,358.86
  4. Step 4: Simplify right side
    49,860.72x = 1,951,490,845.87
  5. Step 5: Solve for x
    x = 1,951,490,845.87/49,860.72
  6. Step 6: Final answer
    x = 39,138.84

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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.