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Finding the Fourth Proportional to 80,551.77, 120,861.82 and 43,102.13

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Solution

The fourth proportional to 80,551.77, 120,861.82 and 43,102.13 is: 64,671.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,551.77 : 120,861.82 = 43,102.13 : x
  2. Step 2: Convert to fraction form
    80,551.77/120,861.82 = 43,102.13/x
  3. Step 3: Cross multiply
    80,551.77x = 120,861.82 × 43,102.13
  4. Step 4: Simplify right side
    80,551.77x = 5,209,401,327.25
  5. Step 5: Solve for x
    x = 5,209,401,327.25/80,551.77
  6. Step 6: Final answer
    x = 64,671.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.