Home / 45,103.23-67,636.85-13,930.11

Finding the Fourth Proportional to 45,103.23, 67,636.85 and 13,930.11

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Solution

The fourth proportional to 45,103.23, 67,636.85 and 13,930.11 is: 20,889.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,103.23 : 67,636.85 = 13,930.11 : x
  2. Step 2: Convert to fraction form
    45,103.23/67,636.85 = 13,930.11/x
  3. Step 3: Cross multiply
    45,103.23x = 67,636.85 × 13,930.11
  4. Step 4: Simplify right side
    45,103.23x = 942,188,690.90
  5. Step 5: Solve for x
    x = 942,188,690.90/45,103.23
  6. Step 6: Final answer
    x = 20,889.61

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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.