Home / 81,469.45-122,207.96-28,884.25

Finding the Fourth Proportional to 81,469.45, 122,207.96 and 28,884.25

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Solution

The fourth proportional to 81,469.45, 122,207.96 and 28,884.25 is: 43,327.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,469.45 : 122,207.96 = 28,884.25 : x
  2. Step 2: Convert to fraction form
    81,469.45/122,207.96 = 28,884.25/x
  3. Step 3: Cross multiply
    81,469.45x = 122,207.96 × 28,884.25
  4. Step 4: Simplify right side
    81,469.45x = 3,529,885,268.63
  5. Step 5: Solve for x
    x = 3,529,885,268.63/81,469.45
  6. Step 6: Final answer
    x = 43,327.72

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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.