Home / 80,111.45-110,554.14-43,813.61

Finding the Fourth Proportional to 80,111.45, 110,554.14 and 43,813.61

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Solution

The fourth proportional to 80,111.45, 110,554.14 and 43,813.61 is: 60,462.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,111.45 : 110,554.14 = 43,813.61 : x
  2. Step 2: Convert to fraction form
    80,111.45/110,554.14 = 43,813.61/x
  3. Step 3: Cross multiply
    80,111.45x = 110,554.14 × 43,813.61
  4. Step 4: Simplify right side
    80,111.45x = 4,843,775,973.85
  5. Step 5: Solve for x
    x = 4,843,775,973.85/80,111.45
  6. Step 6: Final answer
    x = 60,462.97

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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.