Home / 53,845.20-80,844.60-40,789.20

Finding the Fourth Proportional to 53,845.20, 80,844.60 and 40,789.20

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Solution

The fourth proportional to 53,845.20, 80,844.60 and 40,789.20 is: 61,241.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,845.20 : 80,844.60 = 40,789.20 : x
  2. Step 2: Convert to fraction form
    53,845.20/80,844.60 = 40,789.20/x
  3. Step 3: Cross multiply
    53,845.20x = 80,844.60 × 40,789.20
  4. Step 4: Simplify right side
    53,845.20x = 3,297,586,558.32
  5. Step 5: Solve for x
    x = 3,297,586,558.32/53,845.20
  6. Step 6: Final answer
    x = 61,241.98

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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.