Home / 71,136.33-98,173.22-39,304.54

Finding the Fourth Proportional to 71,136.33, 98,173.22 and 39,304.54

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Solution

The fourth proportional to 71,136.33, 98,173.22 and 39,304.54 is: 54,243.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,136.33 : 98,173.22 = 39,304.54 : x
  2. Step 2: Convert to fraction form
    71,136.33/98,173.22 = 39,304.54/x
  3. Step 3: Cross multiply
    71,136.33x = 98,173.22 × 39,304.54
  4. Step 4: Simplify right side
    71,136.33x = 3,858,653,178.61
  5. Step 5: Solve for x
    x = 3,858,653,178.61/71,136.33
  6. Step 6: Final answer
    x = 54,243.08

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1.5x scale

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.