Home / 53,913.40-80,879.82-18,372.75

Finding the Fourth Proportional to 53,913.40, 80,879.82 and 18,372.75

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Solution

The fourth proportional to 53,913.40, 80,879.82 and 18,372.75 is: 27,562.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,913.40 : 80,879.82 = 18,372.75 : x
  2. Step 2: Convert to fraction form
    53,913.40/80,879.82 = 18,372.75/x
  3. Step 3: Cross multiply
    53,913.40x = 80,879.82 × 18,372.75
  4. Step 4: Simplify right side
    53,913.40x = 1,485,984,712.91
  5. Step 5: Solve for x
    x = 1,485,984,712.91/53,913.40
  6. Step 6: Final answer
    x = 27,562.44

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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.