Home / 87,317.82-130,949.37-57,891.72

Finding the Fourth Proportional to 87,317.82, 130,949.37 and 57,891.72

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Solution

The fourth proportional to 87,317.82, 130,949.37 and 57,891.72 is: 86,819.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,317.82 : 130,949.37 = 57,891.72 : x
  2. Step 2: Convert to fraction form
    87,317.82/130,949.37 = 57,891.72/x
  3. Step 3: Cross multiply
    87,317.82x = 130,949.37 × 57,891.72
  4. Step 4: Simplify right side
    87,317.82x = 7,580,884,262.22
  5. Step 5: Solve for x
    x = 7,580,884,262.22/87,317.82
  6. Step 6: Final answer
    x = 86,819.44

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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.