Home / 45,976.14-68,905.62-21,029.76

Finding the Fourth Proportional to 45,976.14, 68,905.62 and 21,029.76

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Solution

The fourth proportional to 45,976.14, 68,905.62 and 21,029.76 is: 31,517.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,976.14 : 68,905.62 = 21,029.76 : x
  2. Step 2: Convert to fraction form
    45,976.14/68,905.62 = 21,029.76/x
  3. Step 3: Cross multiply
    45,976.14x = 68,905.62 × 21,029.76
  4. Step 4: Simplify right side
    45,976.14x = 1,449,068,651.25
  5. Step 5: Solve for x
    x = 1,449,068,651.25/45,976.14
  6. Step 6: Final answer
    x = 31,517.84

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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.