Home / 45,821.31-68,642.48-21,771.38

Finding the Fourth Proportional to 45,821.31, 68,642.48 and 21,771.38

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Solution

The fourth proportional to 45,821.31, 68,642.48 and 21,771.38 is: 32,614.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,821.31 : 68,642.48 = 21,771.38 : x
  2. Step 2: Convert to fraction form
    45,821.31/68,642.48 = 21,771.38/x
  3. Step 3: Cross multiply
    45,821.31x = 68,642.48 × 21,771.38
  4. Step 4: Simplify right side
    45,821.31x = 1,494,441,901.59
  5. Step 5: Solve for x
    x = 1,494,441,901.59/45,821.31
  6. Step 6: Final answer
    x = 32,614.56

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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.