Home / 86,105.43-129,160.58-23,775.93

Finding the Fourth Proportional to 86,105.43, 129,160.58 and 23,775.93

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Solution

The fourth proportional to 86,105.43, 129,160.58 and 23,775.93 is: 35,664.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,105.43 : 129,160.58 = 23,775.93 : x
  2. Step 2: Convert to fraction form
    86,105.43/129,160.58 = 23,775.93/x
  3. Step 3: Cross multiply
    86,105.43x = 129,160.58 × 23,775.93
  4. Step 4: Simplify right side
    86,105.43x = 3,070,912,789.96
  5. Step 5: Solve for x
    x = 3,070,912,789.96/86,105.43
  6. Step 6: Final answer
    x = 35,664.57

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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.