Home / 45,489.31-68,247.16-18,830.39

Finding the Fourth Proportional to 45,489.31, 68,247.16 and 18,830.39

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Solution

The fourth proportional to 45,489.31, 68,247.16 and 18,830.39 is: 28,251.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,489.31 : 68,247.16 = 18,830.39 : x
  2. Step 2: Convert to fraction form
    45,489.31/68,247.16 = 18,830.39/x
  3. Step 3: Cross multiply
    45,489.31x = 68,247.16 × 18,830.39
  4. Step 4: Simplify right side
    45,489.31x = 1,285,120,250.88
  5. Step 5: Solve for x
    x = 1,285,120,250.88/45,489.31
  6. Step 6: Final answer
    x = 28,251.04

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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.