Home / 49,910.55-68,868.70-28,685.71

Finding the Fourth Proportional to 49,910.55, 68,868.70 and 28,685.71

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Solution

The fourth proportional to 49,910.55, 68,868.70 and 28,685.71 is: 39,581.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,910.55 : 68,868.70 = 28,685.71 : x
  2. Step 2: Convert to fraction form
    49,910.55/68,868.70 = 28,685.71/x
  3. Step 3: Cross multiply
    49,910.55x = 68,868.70 × 28,685.71
  4. Step 4: Simplify right side
    49,910.55x = 1,975,547,556.28
  5. Step 5: Solve for x
    x = 1,975,547,556.28/49,910.55
  6. Step 6: Final answer
    x = 39,581.76

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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.