Home / 57,136.06-85,672.01-39,144.60

Finding the Fourth Proportional to 57,136.06, 85,672.01 and 39,144.60

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Solution

The fourth proportional to 57,136.06, 85,672.01 and 39,144.60 is: 58,694.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,136.06 : 85,672.01 = 39,144.60 : x
  2. Step 2: Convert to fraction form
    57,136.06/85,672.01 = 39,144.60/x
  3. Step 3: Cross multiply
    57,136.06x = 85,672.01 × 39,144.60
  4. Step 4: Simplify right side
    57,136.06x = 3,353,596,562.65
  5. Step 5: Solve for x
    x = 3,353,596,562.65/57,136.06
  6. Step 6: Final answer
    x = 58,694.92

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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.