Home / 66,122.25-91,257.03-40,975.53

Finding the Fourth Proportional to 66,122.25, 91,257.03 and 40,975.53

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Solution

The fourth proportional to 66,122.25, 91,257.03 and 40,975.53 is: 56,551.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,122.25 : 91,257.03 = 40,975.53 : x
  2. Step 2: Convert to fraction form
    66,122.25/91,257.03 = 40,975.53/x
  3. Step 3: Cross multiply
    66,122.25x = 91,257.03 × 40,975.53
  4. Step 4: Simplify right side
    66,122.25x = 3,739,304,965.60
  5. Step 5: Solve for x
    x = 3,739,304,965.60/66,122.25
  6. Step 6: Final answer
    x = 56,551.39

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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.