Home / 85,380.66-117,832.05-49,581.90

Finding the Fourth Proportional to 85,380.66, 117,832.05 and 49,581.90

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Solution

The fourth proportional to 85,380.66, 117,832.05 and 49,581.90 is: 68,426.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,380.66 : 117,832.05 = 49,581.90 : x
  2. Step 2: Convert to fraction form
    85,380.66/117,832.05 = 49,581.90/x
  3. Step 3: Cross multiply
    85,380.66x = 117,832.05 × 49,581.90
  4. Step 4: Simplify right side
    85,380.66x = 5,842,336,919.90
  5. Step 5: Solve for x
    x = 5,842,336,919.90/85,380.66
  6. Step 6: Final answer
    x = 68,426.94

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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.