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Finding the Fourth Proportional to 45,483.26, 68,234.03 and 19,187.88

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Solution

The fourth proportional to 45,483.26, 68,234.03 and 19,187.88 is: 28,785.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,483.26 : 68,234.03 = 19,187.88 : x
  2. Step 2: Convert to fraction form
    45,483.26/68,234.03 = 19,187.88/x
  3. Step 3: Cross multiply
    45,483.26x = 68,234.03 × 19,187.88
  4. Step 4: Simplify right side
    45,483.26x = 1,309,266,283.62
  5. Step 5: Solve for x
    x = 1,309,266,283.62/45,483.26
  6. Step 6: Final answer
    x = 28,785.68

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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.