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Finding the Fourth Proportional to 80,338.85, 110,871.25 and 45,886.60

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Solution

The fourth proportional to 80,338.85, 110,871.25 and 45,886.60 is: 63,325.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,338.85 : 110,871.25 = 45,886.60 : x
  2. Step 2: Convert to fraction form
    80,338.85/110,871.25 = 45,886.60/x
  3. Step 3: Cross multiply
    80,338.85x = 110,871.25 × 45,886.60
  4. Step 4: Simplify right side
    80,338.85x = 5,087,504,724.12
  5. Step 5: Solve for x
    x = 5,087,504,724.12/80,338.85
  6. Step 6: Final answer
    x = 63,325.59

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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.