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Finding the Fourth Proportional to 80,393.10, 120,601.53 and 27,788.46

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Solution

The fourth proportional to 80,393.10, 120,601.53 and 27,788.46 is: 41,686.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,393.10 : 120,601.53 = 27,788.46 : x
  2. Step 2: Convert to fraction form
    80,393.10/120,601.53 = 27,788.46/x
  3. Step 3: Cross multiply
    80,393.10x = 120,601.53 × 27,788.46
  4. Step 4: Simplify right side
    80,393.10x = 3,351,330,792.34
  5. Step 5: Solve for x
    x = 3,351,330,792.34/80,393.10
  6. Step 6: Final answer
    x = 41,686.80

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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.