Home / 87,563.40-120,843.62-49,837.66

Finding the Fourth Proportional to 87,563.40, 120,843.62 and 49,837.66

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Solution

The fourth proportional to 87,563.40, 120,843.62 and 49,837.66 is: 68,779.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,563.40 : 120,843.62 = 49,837.66 : x
  2. Step 2: Convert to fraction form
    87,563.40/120,843.62 = 49,837.66/x
  3. Step 3: Cross multiply
    87,563.40x = 120,843.62 × 49,837.66
  4. Step 4: Simplify right side
    87,563.40x = 6,022,563,246.73
  5. Step 5: Solve for x
    x = 6,022,563,246.73/87,563.40
  6. Step 6: Final answer
    x = 68,779.46

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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.