Home / 57,561.72-86,338.38-18,130.11

Finding the Fourth Proportional to 57,561.72, 86,338.38 and 18,130.11

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Solution

The fourth proportional to 57,561.72, 86,338.38 and 18,130.11 is: 27,193.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,561.72 : 86,338.38 = 18,130.11 : x
  2. Step 2: Convert to fraction form
    57,561.72/86,338.38 = 18,130.11/x
  3. Step 3: Cross multiply
    57,561.72x = 86,338.38 × 18,130.11
  4. Step 4: Simplify right side
    57,561.72x = 1,565,324,326.62
  5. Step 5: Solve for x
    x = 1,565,324,326.62/57,561.72
  6. Step 6: Final answer
    x = 27,193.84

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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.