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Finding the Fourth Proportional to 80,371.99, 120,504.79 and 35,937.55

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Solution

The fourth proportional to 80,371.99, 120,504.79 and 35,937.55 is: 53,882.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,371.99 : 120,504.79 = 35,937.55 : x
  2. Step 2: Convert to fraction form
    80,371.99/120,504.79 = 35,937.55/x
  3. Step 3: Cross multiply
    80,371.99x = 120,504.79 × 35,937.55
  4. Step 4: Simplify right side
    80,371.99x = 4,330,646,915.86
  5. Step 5: Solve for x
    x = 4,330,646,915.86/80,371.99
  6. Step 6: Final answer
    x = 53,882.54

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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.