Home / 49,941.48-68,921.25-28,720.74

Finding the Fourth Proportional to 49,941.48, 68,921.25 and 28,720.74

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Solution

The fourth proportional to 49,941.48, 68,921.25 and 28,720.74 is: 39,635.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,941.48 : 68,921.25 = 28,720.74 : x
  2. Step 2: Convert to fraction form
    49,941.48/68,921.25 = 28,720.74/x
  3. Step 3: Cross multiply
    49,941.48x = 68,921.25 × 28,720.74
  4. Step 4: Simplify right side
    49,941.48x = 1,979,469,301.73
  5. Step 5: Solve for x
    x = 1,979,469,301.73/49,941.48
  6. Step 6: Final answer
    x = 39,635.78

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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.