Home / 67,961.17-101,955.89-20,578.92

Finding the Fourth Proportional to 67,961.17, 101,955.89 and 20,578.92

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Solution

The fourth proportional to 67,961.17, 101,955.89 and 20,578.92 is: 30,872.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,961.17 : 101,955.89 = 20,578.92 : x
  2. Step 2: Convert to fraction form
    67,961.17/101,955.89 = 20,578.92/x
  3. Step 3: Cross multiply
    67,961.17x = 101,955.89 × 20,578.92
  4. Step 4: Simplify right side
    67,961.17x = 2,098,141,491.16
  5. Step 5: Solve for x
    x = 2,098,141,491.16/67,961.17
  6. Step 6: Final answer
    x = 30,872.65

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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.