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Finding the Fourth Proportional to 81,599.62, 112,618.67 and 45,791.75

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Solution

The fourth proportional to 81,599.62, 112,618.67 and 45,791.75 is: 63,198.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,599.62 : 112,618.67 = 45,791.75 : x
  2. Step 2: Convert to fraction form
    81,599.62/112,618.67 = 45,791.75/x
  3. Step 3: Cross multiply
    81,599.62x = 112,618.67 × 45,791.75
  4. Step 4: Simplify right side
    81,599.62x = 5,157,005,189.92
  5. Step 5: Solve for x
    x = 5,157,005,189.92/81,599.62
  6. Step 6: Final answer
    x = 63,198.89

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1.5x scale

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.