Home / 75,579.78-104,343.30-50,120.76

Finding the Fourth Proportional to 75,579.78, 104,343.30 and 50,120.76

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Solution

The fourth proportional to 75,579.78, 104,343.30 and 50,120.76 is: 69,195.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,579.78 : 104,343.30 = 50,120.76 : x
  2. Step 2: Convert to fraction form
    75,579.78/104,343.30 = 50,120.76/x
  3. Step 3: Cross multiply
    75,579.78x = 104,343.30 × 50,120.76
  4. Step 4: Simplify right side
    75,579.78x = 5,229,765,496.91
  5. Step 5: Solve for x
    x = 5,229,765,496.91/75,579.78
  6. Step 6: Final answer
    x = 69,195.30

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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.