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Finding the Fourth Proportional to 68,516.92, 102,773.88 and 31,580.92

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Solution

The fourth proportional to 68,516.92, 102,773.88 and 31,580.92 is: 47,370.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,516.92 : 102,773.88 = 31,580.92 : x
  2. Step 2: Convert to fraction form
    68,516.92/102,773.88 = 31,580.92/x
  3. Step 3: Cross multiply
    68,516.92x = 102,773.88 × 31,580.92
  4. Step 4: Simplify right side
    68,516.92x = 3,245,693,682.37
  5. Step 5: Solve for x
    x = 3,245,693,682.37/68,516.92
  6. Step 6: Final answer
    x = 47,370.69

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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.