Home / 259,942.53-389,927.58-72,968.61

Finding the Fourth Proportional to 259,942.53, 389,927.58 and 72,968.61

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Solution

The fourth proportional to 259,942.53, 389,927.58 and 72,968.61 is: 109,456.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,942.53 : 389,927.58 = 72,968.61 : x
  2. Step 2: Convert to fraction form
    259,942.53/389,927.58 = 72,968.61/x
  3. Step 3: Cross multiply
    259,942.53x = 389,927.58 × 72,968.61
  4. Step 4: Simplify right side
    259,942.53x = 28,452,473,513.26
  5. Step 5: Solve for x
    x = 28,452,473,513.26/259,942.53
  6. Step 6: Final answer
    x = 109,456.78

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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.