Home / 75,636.24-104,371.56-42,105.36

Finding the Fourth Proportional to 75,636.24, 104,371.56 and 42,105.36

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Solution

The fourth proportional to 75,636.24, 104,371.56 and 42,105.36 is: 58,101.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,636.24 : 104,371.56 = 42,105.36 : x
  2. Step 2: Convert to fraction form
    75,636.24/104,371.56 = 42,105.36/x
  3. Step 3: Cross multiply
    75,636.24x = 104,371.56 × 42,105.36
  4. Step 4: Simplify right side
    75,636.24x = 4,394,602,107.56
  5. Step 5: Solve for x
    x = 4,394,602,107.56/75,636.24
  6. Step 6: Final answer
    x = 58,101.81

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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.