Home / 45,418.46-68,127.71-21,720.41

Finding the Fourth Proportional to 45,418.46, 68,127.71 and 21,720.41

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Solution

The fourth proportional to 45,418.46, 68,127.71 and 21,720.41 is: 32,580.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,418.46 : 68,127.71 = 21,720.41 : x
  2. Step 2: Convert to fraction form
    45,418.46/68,127.71 = 21,720.41/x
  3. Step 3: Cross multiply
    45,418.46x = 68,127.71 × 21,720.41
  4. Step 4: Simplify right side
    45,418.46x = 1,479,761,344.32
  5. Step 5: Solve for x
    x = 1,479,761,344.32/45,418.46
  6. Step 6: Final answer
    x = 32,580.62

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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.