Home / 45,418.46-68,146.41-20,104.70

Finding the Fourth Proportional to 45,418.46, 68,146.41 and 20,104.70

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Solution

The fourth proportional to 45,418.46, 68,146.41 and 20,104.70 is: 30,165.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,418.46 : 68,146.41 = 20,104.70 : x
  2. Step 2: Convert to fraction form
    45,418.46/68,146.41 = 20,104.70/x
  3. Step 3: Cross multiply
    45,418.46x = 68,146.41 × 20,104.70
  4. Step 4: Simplify right side
    45,418.46x = 1,370,063,129.13
  5. Step 5: Solve for x
    x = 1,370,063,129.13/45,418.46
  6. Step 6: Final answer
    x = 30,165.34

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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.