Home / 71,409.36-107,105.94-18,101.10

Finding the Fourth Proportional to 71,409.36, 107,105.94 and 18,101.10

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Solution

The fourth proportional to 71,409.36, 107,105.94 and 18,101.10 is: 27,149.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,409.36 : 107,105.94 = 18,101.10 : x
  2. Step 2: Convert to fraction form
    71,409.36/107,105.94 = 18,101.10/x
  3. Step 3: Cross multiply
    71,409.36x = 107,105.94 × 18,101.10
  4. Step 4: Simplify right side
    71,409.36x = 1,938,735,330.53
  5. Step 5: Solve for x
    x = 1,938,735,330.53/71,409.36
  6. Step 6: Final answer
    x = 27,149.60

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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.