Home / 80,540.30-111,145.88-44,730.31

Finding the Fourth Proportional to 80,540.30, 111,145.88 and 44,730.31

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Solution

The fourth proportional to 80,540.30, 111,145.88 and 44,730.31 is: 61,727.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,540.30 : 111,145.88 = 44,730.31 : x
  2. Step 2: Convert to fraction form
    80,540.30/111,145.88 = 44,730.31/x
  3. Step 3: Cross multiply
    80,540.30x = 111,145.88 × 44,730.31
  4. Step 4: Simplify right side
    80,540.30x = 4,971,589,166.11
  5. Step 5: Solve for x
    x = 4,971,589,166.11/80,540.30
  6. Step 6: Final answer
    x = 61,727.97

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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.