Home / 87,646.76-131,451.26-27,679.90

Finding the Fourth Proportional to 87,646.76, 131,451.26 and 27,679.90

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Solution

The fourth proportional to 87,646.76, 131,451.26 and 27,679.90 is: 41,513.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,646.76 : 131,451.26 = 27,679.90 : x
  2. Step 2: Convert to fraction form
    87,646.76/131,451.26 = 27,679.90/x
  3. Step 3: Cross multiply
    87,646.76x = 131,451.26 × 27,679.90
  4. Step 4: Simplify right side
    87,646.76x = 3,638,557,968.40
  5. Step 5: Solve for x
    x = 3,638,557,968.40/87,646.76
  6. Step 6: Final answer
    x = 41,513.89

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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.