Home / 86,568.67-129,876.04-27,405.55

Finding the Fourth Proportional to 86,568.67, 129,876.04 and 27,405.55

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Solution

The fourth proportional to 86,568.67, 129,876.04 and 27,405.55 is: 41,115.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,568.67 : 129,876.04 = 27,405.55 : x
  2. Step 2: Convert to fraction form
    86,568.67/129,876.04 = 27,405.55/x
  3. Step 3: Cross multiply
    86,568.67x = 129,876.04 × 27,405.55
  4. Step 4: Simplify right side
    86,568.67x = 3,559,323,658.64
  5. Step 5: Solve for x
    x = 3,559,323,658.64/86,568.67
  6. Step 6: Final answer
    x = 41,115.61

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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.