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Finding the Fourth Proportional to 64,122.89, 88,489.41 and 35,828.60

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Solution

The fourth proportional to 64,122.89, 88,489.41 and 35,828.60 is: 49,443.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,122.89 : 88,489.41 = 35,828.60 : x
  2. Step 2: Convert to fraction form
    64,122.89/88,489.41 = 35,828.60/x
  3. Step 3: Cross multiply
    64,122.89x = 88,489.41 × 35,828.60
  4. Step 4: Simplify right side
    64,122.89x = 3,170,451,761.99
  5. Step 5: Solve for x
    x = 3,170,451,761.99/64,122.89
  6. Step 6: Final answer
    x = 49,443.37

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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.