Home / 85,844.20-128,723.10-50,794.60

Finding the Fourth Proportional to 85,844.20, 128,723.10 and 50,794.60

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Solution

The fourth proportional to 85,844.20, 128,723.10 and 50,794.60 is: 76,166.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,844.20 : 128,723.10 = 50,794.60 : x
  2. Step 2: Convert to fraction form
    85,844.20/128,723.10 = 50,794.60/x
  3. Step 3: Cross multiply
    85,844.20x = 128,723.10 × 50,794.60
  4. Step 4: Simplify right side
    85,844.20x = 6,538,438,375.26
  5. Step 5: Solve for x
    x = 6,538,438,375.26/85,844.20
  6. Step 6: Final answer
    x = 76,166.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.