Home / 86,081.16-129,129.18-23,751.66

Finding the Fourth Proportional to 86,081.16, 129,129.18 and 23,751.66

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Solution

The fourth proportional to 86,081.16, 129,129.18 and 23,751.66 is: 35,629.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,081.16 : 129,129.18 = 23,751.66 : x
  2. Step 2: Convert to fraction form
    86,081.16/129,129.18 = 23,751.66/x
  3. Step 3: Cross multiply
    86,081.16x = 129,129.18 × 23,751.66
  4. Step 4: Simplify right side
    86,081.16x = 3,067,032,379.44
  5. Step 5: Solve for x
    x = 3,067,032,379.44/86,081.16
  6. Step 6: Final answer
    x = 35,629.54

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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.