Home / 49,857.12-68,812.92-28,650.96

Finding the Fourth Proportional to 49,857.12, 68,812.92 and 28,650.96

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Solution

The fourth proportional to 49,857.12, 68,812.92 and 28,650.96 is: 39,544.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,857.12 : 68,812.92 = 28,650.96 : x
  2. Step 2: Convert to fraction form
    49,857.12/68,812.92 = 28,650.96/x
  3. Step 3: Cross multiply
    49,857.12x = 68,812.92 × 28,650.96
  4. Step 4: Simplify right side
    49,857.12x = 1,971,556,218.40
  5. Step 5: Solve for x
    x = 1,971,556,218.40/49,857.12
  6. Step 6: Final answer
    x = 39,544.13

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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.