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Finding the Fourth Proportional to 65,997.75, 91,077.30 and 37,719.84

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Solution

The fourth proportional to 65,997.75, 91,077.30 and 37,719.84 is: 52,053.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,997.75 : 91,077.30 = 37,719.84 : x
  2. Step 2: Convert to fraction form
    65,997.75/91,077.30 = 37,719.84/x
  3. Step 3: Cross multiply
    65,997.75x = 91,077.30 × 37,719.84
  4. Step 4: Simplify right side
    65,997.75x = 3,435,421,183.63
  5. Step 5: Solve for x
    x = 3,435,421,183.63/65,997.75
  6. Step 6: Final answer
    x = 52,053.61

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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.