Home / 67,136.45-100,704.74-31,969.49

Finding the Fourth Proportional to 67,136.45, 100,704.74 and 31,969.49

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Solution

The fourth proportional to 67,136.45, 100,704.74 and 31,969.49 is: 47,954.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,136.45 : 100,704.74 = 31,969.49 : x
  2. Step 2: Convert to fraction form
    67,136.45/100,704.74 = 31,969.49/x
  3. Step 3: Cross multiply
    67,136.45x = 100,704.74 × 31,969.49
  4. Step 4: Simplify right side
    67,136.45x = 3,219,478,515.01
  5. Step 5: Solve for x
    x = 3,219,478,515.01/67,136.45
  6. Step 6: Final answer
    x = 47,954.26

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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.