Home / 85,311.22-117,730.68-47,072.44

Finding the Fourth Proportional to 85,311.22, 117,730.68 and 47,072.44

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Solution

The fourth proportional to 85,311.22, 117,730.68 and 47,072.44 is: 64,960.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,311.22 : 117,730.68 = 47,072.44 : x
  2. Step 2: Convert to fraction form
    85,311.22/117,730.68 = 47,072.44/x
  3. Step 3: Cross multiply
    85,311.22x = 117,730.68 × 47,072.44
  4. Step 4: Simplify right side
    85,311.22x = 5,541,870,370.46
  5. Step 5: Solve for x
    x = 5,541,870,370.46/85,311.22
  6. Step 6: Final answer
    x = 64,960.63

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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.