Home / 74,659.82-111,988.31-18,500.04

Finding the Fourth Proportional to 74,659.82, 111,988.31 and 18,500.04

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Solution

The fourth proportional to 74,659.82, 111,988.31 and 18,500.04 is: 27,749.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,659.82 : 111,988.31 = 18,500.04 : x
  2. Step 2: Convert to fraction form
    74,659.82/111,988.31 = 18,500.04/x
  3. Step 3: Cross multiply
    74,659.82x = 111,988.31 × 18,500.04
  4. Step 4: Simplify right side
    74,659.82x = 2,071,788,122.03
  5. Step 5: Solve for x
    x = 2,071,788,122.03/74,659.82
  6. Step 6: Final answer
    x = 27,749.71

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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.