Home / 57,982.62-86,987.43-18,536.70

Finding the Fourth Proportional to 57,982.62, 86,987.43 and 18,536.70

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Solution

The fourth proportional to 57,982.62, 86,987.43 and 18,536.70 is: 27,809.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,982.62 : 86,987.43 = 18,536.70 : x
  2. Step 2: Convert to fraction form
    57,982.62/86,987.43 = 18,536.70/x
  3. Step 3: Cross multiply
    57,982.62x = 86,987.43 × 18,536.70
  4. Step 4: Simplify right side
    57,982.62x = 1,612,459,893.68
  5. Step 5: Solve for x
    x = 1,612,459,893.68/57,982.62
  6. Step 6: Final answer
    x = 27,809.37

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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.