Home / 80,540-111,146.70-44,733.32

Finding the Fourth Proportional to 80,540, 111,146.70 and 44,733.32

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Solution

The fourth proportional to 80,540, 111,146.70 and 44,733.32 is: 61,732.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,540 : 111,146.70 = 44,733.32 : x
  2. Step 2: Convert to fraction form
    80,540/111,146.70 = 44,733.32/x
  3. Step 3: Cross multiply
    80,540x = 111,146.70 × 44,733.32
  4. Step 4: Simplify right side
    80,540x = 4,971,960,898.04
  5. Step 5: Solve for x
    x = 4,971,960,898.04/80,540
  6. Step 6: Final answer
    x = 61,732.81

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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.