Home / 76,074.42-104,982.09-42,540.42

Finding the Fourth Proportional to 76,074.42, 104,982.09 and 42,540.42

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Solution

The fourth proportional to 76,074.42, 104,982.09 and 42,540.42 is: 58,705.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,074.42 : 104,982.09 = 42,540.42 : x
  2. Step 2: Convert to fraction form
    76,074.42/104,982.09 = 42,540.42/x
  3. Step 3: Cross multiply
    76,074.42x = 104,982.09 × 42,540.42
  4. Step 4: Simplify right side
    76,074.42x = 4,465,982,201.08
  5. Step 5: Solve for x
    x = 4,465,982,201.08/76,074.42
  6. Step 6: Final answer
    x = 58,705.44

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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.