Home / 285,944.04-428,917.68-75,579.75

Finding the Fourth Proportional to 285,944.04, 428,917.68 and 75,579.75

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Solution

The fourth proportional to 285,944.04, 428,917.68 and 75,579.75 is: 113,370.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,944.04 : 428,917.68 = 75,579.75 : x
  2. Step 2: Convert to fraction form
    285,944.04/428,917.68 = 75,579.75/x
  3. Step 3: Cross multiply
    285,944.04x = 428,917.68 × 75,579.75
  4. Step 4: Simplify right side
    285,944.04x = 32,417,491,024.98
  5. Step 5: Solve for x
    x = 32,417,491,024.98/285,944.04
  6. Step 6: Final answer
    x = 113,370.05

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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.