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Finding the Fourth Proportional to 43,064.56, 64,600.48 and 11,899.84

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Solution

The fourth proportional to 43,064.56, 64,600.48 and 11,899.84 is: 17,850.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,064.56 : 64,600.48 = 11,899.84 : x
  2. Step 2: Convert to fraction form
    43,064.56/64,600.48 = 11,899.84/x
  3. Step 3: Cross multiply
    43,064.56x = 64,600.48 × 11,899.84
  4. Step 4: Simplify right side
    43,064.56x = 768,735,375.92
  5. Step 5: Solve for x
    x = 768,735,375.92/43,064.56
  6. Step 6: Final answer
    x = 17,850.77

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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.