Home / 75,789.48-104,583.78-42,249

Finding the Fourth Proportional to 75,789.48, 104,583.78 and 42,249

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Solution

The fourth proportional to 75,789.48, 104,583.78 and 42,249 is: 58,300.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,789.48 : 104,583.78 = 42,249 : x
  2. Step 2: Convert to fraction form
    75,789.48/104,583.78 = 42,249/x
  3. Step 3: Cross multiply
    75,789.48x = 104,583.78 × 42,249
  4. Step 4: Simplify right side
    75,789.48x = 4,418,560,121.22
  5. Step 5: Solve for x
    x = 4,418,560,121.22/75,789.48
  6. Step 6: Final answer
    x = 58,300.44

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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.