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Finding the Fourth Proportional to 80,327.84, 110,753.88 and 65,177.60

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Solution

The fourth proportional to 80,327.84, 110,753.88 and 65,177.60 is: 89,865.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,327.84 : 110,753.88 = 65,177.60 : x
  2. Step 2: Convert to fraction form
    80,327.84/110,753.88 = 65,177.60/x
  3. Step 3: Cross multiply
    80,327.84x = 110,753.88 × 65,177.60
  4. Step 4: Simplify right side
    80,327.84x = 7,218,672,089.09
  5. Step 5: Solve for x
    x = 7,218,672,089.09/80,327.84
  6. Step 6: Final answer
    x = 89,865.13

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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.