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Finding the Fourth Proportional to 43,937, 65,906.61 and 15,859.46

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Solution

The fourth proportional to 43,937, 65,906.61 and 15,859.46 is: 23,789.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,937 : 65,906.61 = 15,859.46 : x
  2. Step 2: Convert to fraction form
    43,937/65,906.61 = 15,859.46/x
  3. Step 3: Cross multiply
    43,937x = 65,906.61 × 15,859.46
  4. Step 4: Simplify right side
    43,937x = 1,045,243,245.03
  5. Step 5: Solve for x
    x = 1,045,243,245.03/43,937
  6. Step 6: Final answer
    x = 23,789.59

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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.