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Finding the Fourth Proportional to 80,519.91, 111,120.90 and 44,709.89

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Solution

The fourth proportional to 80,519.91, 111,120.90 and 44,709.89 is: 61,701.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,519.91 : 111,120.90 = 44,709.89 : x
  2. Step 2: Convert to fraction form
    80,519.91/111,120.90 = 44,709.89/x
  3. Step 3: Cross multiply
    80,519.91x = 111,120.90 × 44,709.89
  4. Step 4: Simplify right side
    80,519.91x = 4,968,203,117.49
  5. Step 5: Solve for x
    x = 4,968,203,117.49/80,519.91
  6. Step 6: Final answer
    x = 61,701.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.