Home / 68,485.44-102,741.12-38,936.64

Finding the Fourth Proportional to 68,485.44, 102,741.12 and 38,936.64

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Solution

The fourth proportional to 68,485.44, 102,741.12 and 38,936.64 is: 58,412.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,485.44 : 102,741.12 = 38,936.64 : x
  2. Step 2: Convert to fraction form
    68,485.44/102,741.12 = 38,936.64/x
  3. Step 3: Cross multiply
    68,485.44x = 102,741.12 × 38,936.64
  4. Step 4: Simplify right side
    68,485.44x = 4,000,394,002.64
  5. Step 5: Solve for x
    x = 4,000,394,002.64/68,485.44
  6. Step 6: Final answer
    x = 58,412.33

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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.