Home / 85,385.98-117,832.21-49,584.79

Finding the Fourth Proportional to 85,385.98, 117,832.21 and 49,584.79

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Solution

The fourth proportional to 85,385.98, 117,832.21 and 49,584.79 is: 68,426.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,385.98 : 117,832.21 = 49,584.79 : x
  2. Step 2: Convert to fraction form
    85,385.98/117,832.21 = 49,584.79/x
  3. Step 3: Cross multiply
    85,385.98x = 117,832.21 × 49,584.79
  4. Step 4: Simplify right side
    85,385.98x = 5,842,685,388.09
  5. Step 5: Solve for x
    x = 5,842,685,388.09/85,385.98
  6. Step 6: Final answer
    x = 68,426.75

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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.