Home / 49,750.20-68,651.78-28,240.38

Finding the Fourth Proportional to 49,750.20, 68,651.78 and 28,240.38

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Solution

The fourth proportional to 49,750.20, 68,651.78 and 28,240.38 is: 38,969.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,750.20 : 68,651.78 = 28,240.38 : x
  2. Step 2: Convert to fraction form
    49,750.20/68,651.78 = 28,240.38/x
  3. Step 3: Cross multiply
    49,750.20x = 68,651.78 × 28,240.38
  4. Step 4: Simplify right side
    49,750.20x = 1,938,752,354.88
  5. Step 5: Solve for x
    x = 1,938,752,354.88/49,750.20
  6. Step 6: Final answer
    x = 38,969.74

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1.5x scale

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.