Home / 81,772.62-122,556.33-34,970.46

Finding the Fourth Proportional to 81,772.62, 122,556.33 and 34,970.46

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Solution

The fourth proportional to 81,772.62, 122,556.33 and 34,970.46 is: 52,411.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,772.62 : 122,556.33 = 34,970.46 : x
  2. Step 2: Convert to fraction form
    81,772.62/122,556.33 = 34,970.46/x
  3. Step 3: Cross multiply
    81,772.62x = 122,556.33 × 34,970.46
  4. Step 4: Simplify right side
    81,772.62x = 4,285,851,236.01
  5. Step 5: Solve for x
    x = 4,285,851,236.01/81,772.62
  6. Step 6: Final answer
    x = 52,411.81

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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.