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Finding the Fourth Proportional to 80,317.92, 110,890.32 and 51,649.84

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Solution

The fourth proportional to 80,317.92, 110,890.32 and 51,649.84 is: 71,309.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,317.92 : 110,890.32 = 51,649.84 : x
  2. Step 2: Convert to fraction form
    80,317.92/110,890.32 = 51,649.84/x
  3. Step 3: Cross multiply
    80,317.92x = 110,890.32 × 51,649.84
  4. Step 4: Simplify right side
    80,317.92x = 5,727,467,285.55
  5. Step 5: Solve for x
    x = 5,727,467,285.55/80,317.92
  6. Step 6: Final answer
    x = 71,309.96

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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.