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Finding the Fourth Proportional to 80,845.88, 111,567.33 and 47,311.88

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Solution

The fourth proportional to 80,845.88, 111,567.33 and 47,311.88 is: 65,290.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,845.88 : 111,567.33 = 47,311.88 : x
  2. Step 2: Convert to fraction form
    80,845.88/111,567.33 = 47,311.88/x
  3. Step 3: Cross multiply
    80,845.88x = 111,567.33 × 47,311.88
  4. Step 4: Simplify right side
    80,845.88x = 5,278,459,571.04
  5. Step 5: Solve for x
    x = 5,278,459,571.04/80,845.88
  6. Step 6: Final answer
    x = 65,290.40

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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.