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Finding the Fourth Proportional to 65,108.08, 89,850.92 and 36,818

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Solution

The fourth proportional to 65,108.08, 89,850.92 and 36,818 is: 50,809.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,108.08 : 89,850.92 = 36,818 : x
  2. Step 2: Convert to fraction form
    65,108.08/89,850.92 = 36,818/x
  3. Step 3: Cross multiply
    65,108.08x = 89,850.92 × 36,818
  4. Step 4: Simplify right side
    65,108.08x = 3,308,131,172.56
  5. Step 5: Solve for x
    x = 3,308,131,172.56/65,108.08
  6. Step 6: Final answer
    x = 50,809.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.