Home / 86,105.43-129,157.97-23,775.75

Finding the Fourth Proportional to 86,105.43, 129,157.97 and 23,775.75

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Solution

The fourth proportional to 86,105.43, 129,157.97 and 23,775.75 is: 35,663.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,105.43 : 129,157.97 = 23,775.75 : x
  2. Step 2: Convert to fraction form
    86,105.43/129,157.97 = 23,775.75/x
  3. Step 3: Cross multiply
    86,105.43x = 129,157.97 × 23,775.75
  4. Step 4: Simplify right side
    86,105.43x = 3,070,827,486.35
  5. Step 5: Solve for x
    x = 3,070,827,486.35/86,105.43
  6. Step 6: Final answer
    x = 35,663.58

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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.