Home / 69,921.99-104,799.69-40,278.42

Finding the Fourth Proportional to 69,921.99, 104,799.69 and 40,278.42

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Solution

The fourth proportional to 69,921.99, 104,799.69 and 40,278.42 is: 60,369.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,921.99 : 104,799.69 = 40,278.42 : x
  2. Step 2: Convert to fraction form
    69,921.99/104,799.69 = 40,278.42/x
  3. Step 3: Cross multiply
    69,921.99x = 104,799.69 × 40,278.42
  4. Step 4: Simplify right side
    69,921.99x = 4,221,165,929.69
  5. Step 5: Solve for x
    x = 4,221,165,929.69/69,921.99
  6. Step 6: Final answer
    x = 60,369.65

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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.