Home / 49,909.68-68,890.32-29,780.64

Finding the Fourth Proportional to 49,909.68, 68,890.32 and 29,780.64

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Solution

The fourth proportional to 49,909.68, 68,890.32 and 29,780.64 is: 41,106.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,909.68 : 68,890.32 = 29,780.64 : x
  2. Step 2: Convert to fraction form
    49,909.68/68,890.32 = 29,780.64/x
  3. Step 3: Cross multiply
    49,909.68x = 68,890.32 × 29,780.64
  4. Step 4: Simplify right side
    49,909.68x = 2,051,597,819.40
  5. Step 5: Solve for x
    x = 2,051,597,819.40/49,909.68
  6. Step 6: Final answer
    x = 41,106.21

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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.