Home / 86,486.08-129,745.32-27,336.64

Finding the Fourth Proportional to 86,486.08, 129,745.32 and 27,336.64

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Solution

The fourth proportional to 86,486.08, 129,745.32 and 27,336.64 is: 41,010.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,486.08 : 129,745.32 = 27,336.64 : x
  2. Step 2: Convert to fraction form
    86,486.08/129,745.32 = 27,336.64/x
  3. Step 3: Cross multiply
    86,486.08x = 129,745.32 × 27,336.64
  4. Step 4: Simplify right side
    86,486.08x = 3,546,801,104.52
  5. Step 5: Solve for x
    x = 3,546,801,104.52/86,486.08
  6. Step 6: Final answer
    x = 41,010.08

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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.