Home / 75,721.69-104,496.64-41,731.42

Finding the Fourth Proportional to 75,721.69, 104,496.64 and 41,731.42

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Solution

The fourth proportional to 75,721.69, 104,496.64 and 41,731.42 is: 57,589.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,721.69 : 104,496.64 = 41,731.42 : x
  2. Step 2: Convert to fraction form
    75,721.69/104,496.64 = 41,731.42/x
  3. Step 3: Cross multiply
    75,721.69x = 104,496.64 × 41,731.42
  4. Step 4: Simplify right side
    75,721.69x = 4,360,792,649.95
  5. Step 5: Solve for x
    x = 4,360,792,649.95/75,721.69
  6. Step 6: Final answer
    x = 57,589.75

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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.