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Finding the Fourth Proportional to 80,120.88, 120,181.32 and 35,736.93

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Solution

The fourth proportional to 80,120.88, 120,181.32 and 35,736.93 is: 53,605.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,120.88 : 120,181.32 = 35,736.93 : x
  2. Step 2: Convert to fraction form
    80,120.88/120,181.32 = 35,736.93/x
  3. Step 3: Cross multiply
    80,120.88x = 120,181.32 × 35,736.93
  4. Step 4: Simplify right side
    80,120.88x = 4,294,911,420.15
  5. Step 5: Solve for x
    x = 4,294,911,420.15/80,120.88
  6. Step 6: Final answer
    x = 53,605.40

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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.