Home / 75,132.38-103,678.11-41,141.28

Finding the Fourth Proportional to 75,132.38, 103,678.11 and 41,141.28

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Solution

The fourth proportional to 75,132.38, 103,678.11 and 41,141.28 is: 56,772.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,132.38 : 103,678.11 = 41,141.28 : x
  2. Step 2: Convert to fraction form
    75,132.38/103,678.11 = 41,141.28/x
  3. Step 3: Cross multiply
    75,132.38x = 103,678.11 × 41,141.28
  4. Step 4: Simplify right side
    75,132.38x = 4,265,450,153.38
  5. Step 5: Solve for x
    x = 4,265,450,153.38/75,132.38
  6. Step 6: Final answer
    x = 56,772.46

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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.