Home / 57,715.53-86,578.22-20,272.33

Finding the Fourth Proportional to 57,715.53, 86,578.22 and 20,272.33

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Solution

The fourth proportional to 57,715.53, 86,578.22 and 20,272.33 is: 30,410.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,715.53 : 86,578.22 = 20,272.33 : x
  2. Step 2: Convert to fraction form
    57,715.53/86,578.22 = 20,272.33/x
  3. Step 3: Cross multiply
    57,715.53x = 86,578.22 × 20,272.33
  4. Step 4: Simplify right side
    57,715.53x = 1,755,142,246.65
  5. Step 5: Solve for x
    x = 1,755,142,246.65/57,715.53
  6. Step 6: Final answer
    x = 30,410.22

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1.5x scale

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.