Home / 52,387.97-78,553.24-20,766

Finding the Fourth Proportional to 52,387.97, 78,553.24 and 20,766

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Solution

The fourth proportional to 52,387.97, 78,553.24 and 20,766 is: 31,137.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,387.97 : 78,553.24 = 20,766 : x
  2. Step 2: Convert to fraction form
    52,387.97/78,553.24 = 20,766/x
  3. Step 3: Cross multiply
    52,387.97x = 78,553.24 × 20,766
  4. Step 4: Simplify right side
    52,387.97x = 1,631,236,529.93
  5. Step 5: Solve for x
    x = 1,631,236,529.93/52,387.97
  6. Step 6: Final answer
    x = 31,137.62

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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.