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Finding the Fourth Proportional to 64,604.34, 96,906.51 and 20,234.57

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Solution

The fourth proportional to 64,604.34, 96,906.51 and 20,234.57 is: 30,351.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,604.34 : 96,906.51 = 20,234.57 : x
  2. Step 2: Convert to fraction form
    64,604.34/96,906.51 = 20,234.57/x
  3. Step 3: Cross multiply
    64,604.34x = 96,906.51 × 20,234.57
  4. Step 4: Simplify right side
    64,604.34x = 1,960,861,075.52
  5. Step 5: Solve for x
    x = 1,960,861,075.52/64,604.34
  6. Step 6: Final answer
    x = 30,351.85

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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.