Home / 80,433.77-120,672.51-27,847.35

Finding the Fourth Proportional to 80,433.77, 120,672.51 and 27,847.35

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Solution

The fourth proportional to 80,433.77, 120,672.51 and 27,847.35 is: 41,778.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,433.77 : 120,672.51 = 27,847.35 : x
  2. Step 2: Convert to fraction form
    80,433.77/120,672.51 = 27,847.35/x
  3. Step 3: Cross multiply
    80,433.77x = 120,672.51 × 27,847.35
  4. Step 4: Simplify right side
    80,433.77x = 3,360,409,621.35
  5. Step 5: Solve for x
    x = 3,360,409,621.35/80,433.77
  6. Step 6: Final answer
    x = 41,778.59

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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.