Home / 56,268.60-84,350.10-21,231.80

Finding the Fourth Proportional to 56,268.60, 84,350.10 and 21,231.80

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Solution

The fourth proportional to 56,268.60, 84,350.10 and 21,231.80 is: 31,827.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,268.60 : 84,350.10 = 21,231.80 : x
  2. Step 2: Convert to fraction form
    56,268.60/84,350.10 = 21,231.80/x
  3. Step 3: Cross multiply
    56,268.60x = 84,350.10 × 21,231.80
  4. Step 4: Simplify right side
    56,268.60x = 1,790,904,453.18
  5. Step 5: Solve for x
    x = 1,790,904,453.18/56,268.60
  6. Step 6: Final answer
    x = 31,827.78

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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.