Home / 45,721.97-63,135.27-28,754.61

Finding the Fourth Proportional to 45,721.97, 63,135.27 and 28,754.61

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Solution

The fourth proportional to 45,721.97, 63,135.27 and 28,754.61 is: 39,705.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,721.97 : 63,135.27 = 28,754.61 : x
  2. Step 2: Convert to fraction form
    45,721.97/63,135.27 = 28,754.61/x
  3. Step 3: Cross multiply
    45,721.97x = 63,135.27 × 28,754.61
  4. Step 4: Simplify right side
    45,721.97x = 1,815,429,998.99
  5. Step 5: Solve for x
    x = 1,815,429,998.99/45,721.97
  6. Step 6: Final answer
    x = 39,705.86

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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.