Home / 281,654.07-422,481.40-71,292

Finding the Fourth Proportional to 281,654.07, 422,481.40 and 71,292

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Solution

The fourth proportional to 281,654.07, 422,481.40 and 71,292 is: 106,938.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,654.07 : 422,481.40 = 71,292 : x
  2. Step 2: Convert to fraction form
    281,654.07/422,481.40 = 71,292/x
  3. Step 3: Cross multiply
    281,654.07x = 422,481.40 × 71,292
  4. Step 4: Simplify right side
    281,654.07x = 30,119,543,968.80
  5. Step 5: Solve for x
    x = 30,119,543,968.80/281,654.07
  6. Step 6: Final answer
    x = 106,938.07

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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.