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Finding the Fourth Proportional to 81,676.48, 122,536.32 and 44,219.92

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Solution

The fourth proportional to 81,676.48, 122,536.32 and 44,219.92 is: 66,341.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,676.48 : 122,536.32 = 44,219.92 : x
  2. Step 2: Convert to fraction form
    81,676.48/122,536.32 = 44,219.92/x
  3. Step 3: Cross multiply
    81,676.48x = 122,536.32 × 44,219.92
  4. Step 4: Simplify right side
    81,676.48x = 5,418,546,267.49
  5. Step 5: Solve for x
    x = 5,418,546,267.49/81,676.48
  6. Step 6: Final answer
    x = 66,341.57

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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.