Home / 68,861.03-103,279.62-18,929.25

Finding the Fourth Proportional to 68,861.03, 103,279.62 and 18,929.25

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Solution

The fourth proportional to 68,861.03, 103,279.62 and 18,929.25 is: 28,390.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,861.03 : 103,279.62 = 18,929.25 : x
  2. Step 2: Convert to fraction form
    68,861.03/103,279.62 = 18,929.25/x
  3. Step 3: Cross multiply
    68,861.03x = 103,279.62 × 18,929.25
  4. Step 4: Simplify right side
    68,861.03x = 1,955,006,197.31
  5. Step 5: Solve for x
    x = 1,955,006,197.31/68,861.03
  6. Step 6: Final answer
    x = 28,390.60

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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.