Home / 86,636.07-129,970.31-27,455.85

Finding the Fourth Proportional to 86,636.07, 129,970.31 and 27,455.85

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Solution

The fourth proportional to 86,636.07, 129,970.31 and 27,455.85 is: 41,188.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,636.07 : 129,970.31 = 27,455.85 : x
  2. Step 2: Convert to fraction form
    86,636.07/129,970.31 = 27,455.85/x
  3. Step 3: Cross multiply
    86,636.07x = 129,970.31 × 27,455.85
  4. Step 4: Simplify right side
    86,636.07x = 3,568,445,198.53
  5. Step 5: Solve for x
    x = 3,568,445,198.53/86,636.07
  6. Step 6: Final answer
    x = 41,188.91

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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.