Home / 66,986.21-92,440.60-36,772.05

Finding the Fourth Proportional to 66,986.21, 92,440.60 and 36,772.05

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Solution

The fourth proportional to 66,986.21, 92,440.60 and 36,772.05 is: 50,745.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,986.21 : 92,440.60 = 36,772.05 : x
  2. Step 2: Convert to fraction form
    66,986.21/92,440.60 = 36,772.05/x
  3. Step 3: Cross multiply
    66,986.21x = 92,440.60 × 36,772.05
  4. Step 4: Simplify right side
    66,986.21x = 3,399,229,903.03
  5. Step 5: Solve for x
    x = 3,399,229,903.03/66,986.21
  6. Step 6: Final answer
    x = 50,745.22

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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.