Home / 49,627.78-68,489.40-28,406.56

Finding the Fourth Proportional to 49,627.78, 68,489.40 and 28,406.56

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Solution

The fourth proportional to 49,627.78, 68,489.40 and 28,406.56 is: 39,202.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,627.78 : 68,489.40 = 28,406.56 : x
  2. Step 2: Convert to fraction form
    49,627.78/68,489.40 = 28,406.56/x
  3. Step 3: Cross multiply
    49,627.78x = 68,489.40 × 28,406.56
  4. Step 4: Simplify right side
    49,627.78x = 1,945,548,250.46
  5. Step 5: Solve for x
    x = 1,945,548,250.46/49,627.78
  6. Step 6: Final answer
    x = 39,202.81

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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.