Home / 71,181.14-106,790.27-21,261.24

Finding the Fourth Proportional to 71,181.14, 106,790.27 and 21,261.24

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Solution

The fourth proportional to 71,181.14, 106,790.27 and 21,261.24 is: 31,897.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,181.14 : 106,790.27 = 21,261.24 : x
  2. Step 2: Convert to fraction form
    71,181.14/106,790.27 = 21,261.24/x
  3. Step 3: Cross multiply
    71,181.14x = 106,790.27 × 21,261.24
  4. Step 4: Simplify right side
    71,181.14x = 2,270,493,453.83
  5. Step 5: Solve for x
    x = 2,270,493,453.83/71,181.14
  6. Step 6: Final answer
    x = 31,897.40

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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.