Home / 271,537.41-407,309.11-81,999.39

Finding the Fourth Proportional to 271,537.41, 407,309.11 and 81,999.39

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Solution

The fourth proportional to 271,537.41, 407,309.11 and 81,999.39 is: 122,999.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,537.41 : 407,309.11 = 81,999.39 : x
  2. Step 2: Convert to fraction form
    271,537.41/407,309.11 = 81,999.39/x
  3. Step 3: Cross multiply
    271,537.41x = 407,309.11 × 81,999.39
  4. Step 4: Simplify right side
    271,537.41x = 33,399,097,592.74
  5. Step 5: Solve for x
    x = 33,399,097,592.74/271,537.41
  6. Step 6: Final answer
    x = 122,999.98

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1.5x scale

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.