Home / 65,815.20-90,824.72-35,600.56

Finding the Fourth Proportional to 65,815.20, 90,824.72 and 35,600.56

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Solution

The fourth proportional to 65,815.20, 90,824.72 and 35,600.56 is: 49,128.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,815.20 : 90,824.72 = 35,600.56 : x
  2. Step 2: Convert to fraction form
    65,815.20/90,824.72 = 35,600.56/x
  3. Step 3: Cross multiply
    65,815.20x = 90,824.72 × 35,600.56
  4. Step 4: Simplify right side
    65,815.20x = 3,233,410,893.84
  5. Step 5: Solve for x
    x = 3,233,410,893.84/65,815.20
  6. Step 6: Final answer
    x = 49,128.63

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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.