Home / 75,112.20-112,682.88-22,517.28

Finding the Fourth Proportional to 75,112.20, 112,682.88 and 22,517.28

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Solution

The fourth proportional to 75,112.20, 112,682.88 and 22,517.28 is: 33,780.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,112.20 : 112,682.88 = 22,517.28 : x
  2. Step 2: Convert to fraction form
    75,112.20/112,682.88 = 22,517.28/x
  3. Step 3: Cross multiply
    75,112.20x = 112,682.88 × 22,517.28
  4. Step 4: Simplify right side
    75,112.20x = 2,537,311,960.17
  5. Step 5: Solve for x
    x = 2,537,311,960.17/75,112.20
  6. Step 6: Final answer
    x = 33,780.29

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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.