Home / 81,098.17-121,650.62-27,826.77

Finding the Fourth Proportional to 81,098.17, 121,650.62 and 27,826.77

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Solution

The fourth proportional to 81,098.17, 121,650.62 and 27,826.77 is: 41,741.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,098.17 : 121,650.62 = 27,826.77 : x
  2. Step 2: Convert to fraction form
    81,098.17/121,650.62 = 27,826.77/x
  3. Step 3: Cross multiply
    81,098.17x = 121,650.62 × 27,826.77
  4. Step 4: Simplify right side
    81,098.17x = 3,385,143,823.10
  5. Step 5: Solve for x
    x = 3,385,143,823.10/81,098.17
  6. Step 6: Final answer
    x = 41,741.31

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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.