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Finding the Fourth Proportional to 45,063.92, 67,604.88 and 13,898

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Solution

The fourth proportional to 45,063.92, 67,604.88 and 13,898 is: 20,849.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,063.92 : 67,604.88 = 13,898 : x
  2. Step 2: Convert to fraction form
    45,063.92/67,604.88 = 13,898/x
  3. Step 3: Cross multiply
    45,063.92x = 67,604.88 × 13,898
  4. Step 4: Simplify right side
    45,063.92x = 939,572,622.24
  5. Step 5: Solve for x
    x = 939,572,622.24/45,063.92
  6. Step 6: Final answer
    x = 20,849.78

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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.