Home / 45,940.13-68,817.93-20,945.80

Finding the Fourth Proportional to 45,940.13, 68,817.93 and 20,945.80

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Solution

The fourth proportional to 45,940.13, 68,817.93 and 20,945.80 is: 31,376.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,940.13 : 68,817.93 = 20,945.80 : x
  2. Step 2: Convert to fraction form
    45,940.13/68,817.93 = 20,945.80/x
  3. Step 3: Cross multiply
    45,940.13x = 68,817.93 × 20,945.80
  4. Step 4: Simplify right side
    45,940.13x = 1,441,446,685.62
  5. Step 5: Solve for x
    x = 1,441,446,685.62/45,940.13
  6. Step 6: Final answer
    x = 31,376.63

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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.