Home / 81,747.40-122,556.30-44,811.40

Finding the Fourth Proportional to 81,747.40, 122,556.30 and 44,811.40

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Solution

The fourth proportional to 81,747.40, 122,556.30 and 44,811.40 is: 67,181.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,747.40 : 122,556.30 = 44,811.40 : x
  2. Step 2: Convert to fraction form
    81,747.40/122,556.30 = 44,811.40/x
  3. Step 3: Cross multiply
    81,747.40x = 122,556.30 × 44,811.40
  4. Step 4: Simplify right side
    81,747.40x = 5,491,919,381.82
  5. Step 5: Solve for x
    x = 5,491,919,381.82/81,747.40
  6. Step 6: Final answer
    x = 67,181.58

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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.