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Finding the Fourth Proportional to 80,652.27, 120,728.70 and 73,763.22

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Solution

The fourth proportional to 80,652.27, 120,728.70 and 73,763.22 is: 110,416.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,652.27 : 120,728.70 = 73,763.22 : x
  2. Step 2: Convert to fraction form
    80,652.27/120,728.70 = 73,763.22/x
  3. Step 3: Cross multiply
    80,652.27x = 120,728.70 × 73,763.22
  4. Step 4: Simplify right side
    80,652.27x = 8,905,337,658.41
  5. Step 5: Solve for x
    x = 8,905,337,658.41/80,652.27
  6. Step 6: Final answer
    x = 110,416.45

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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.