Home / 68,640.09-94,704.57-47,136.30

Finding the Fourth Proportional to 68,640.09, 94,704.57 and 47,136.30

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Solution

The fourth proportional to 68,640.09, 94,704.57 and 47,136.30 is: 65,035.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,640.09 : 94,704.57 = 47,136.30 : x
  2. Step 2: Convert to fraction form
    68,640.09/94,704.57 = 47,136.30/x
  3. Step 3: Cross multiply
    68,640.09x = 94,704.57 × 47,136.30
  4. Step 4: Simplify right side
    68,640.09x = 4,464,023,022.89
  5. Step 5: Solve for x
    x = 4,464,023,022.89/68,640.09
  6. Step 6: Final answer
    x = 65,035.22

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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.