Home / 86,929.30-119,954.37-49,203.55

Finding the Fourth Proportional to 86,929.30, 119,954.37 and 49,203.55

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Solution

The fourth proportional to 86,929.30, 119,954.37 and 49,203.55 is: 67,896.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,929.30 : 119,954.37 = 49,203.55 : x
  2. Step 2: Convert to fraction form
    86,929.30/119,954.37 = 49,203.55/x
  3. Step 3: Cross multiply
    86,929.30x = 119,954.37 × 49,203.55
  4. Step 4: Simplify right side
    86,929.30x = 5,902,180,899.70
  5. Step 5: Solve for x
    x = 5,902,180,899.70/86,929.30
  6. Step 6: Final answer
    x = 67,896.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.