Home / 86,149.31-129,226.39-23,819.81

Finding the Fourth Proportional to 86,149.31, 129,226.39 and 23,819.81

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Solution

The fourth proportional to 86,149.31, 129,226.39 and 23,819.81 is: 35,730.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,149.31 : 129,226.39 = 23,819.81 : x
  2. Step 2: Convert to fraction form
    86,149.31/129,226.39 = 23,819.81/x
  3. Step 3: Cross multiply
    86,149.31x = 129,226.39 × 23,819.81
  4. Step 4: Simplify right side
    86,149.31x = 3,078,147,351.10
  5. Step 5: Solve for x
    x = 3,078,147,351.10/86,149.31
  6. Step 6: Final answer
    x = 35,730.38

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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.