Home / 57,855.24-86,783.58-18,412.20

Finding the Fourth Proportional to 57,855.24, 86,783.58 and 18,412.20

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Solution

The fourth proportional to 57,855.24, 86,783.58 and 18,412.20 is: 27,618.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,855.24 : 86,783.58 = 18,412.20 : x
  2. Step 2: Convert to fraction form
    57,855.24/86,783.58 = 18,412.20/x
  3. Step 3: Cross multiply
    57,855.24x = 86,783.58 × 18,412.20
  4. Step 4: Simplify right side
    57,855.24x = 1,597,876,631.68
  5. Step 5: Solve for x
    x = 1,597,876,631.68/57,855.24
  6. Step 6: Final answer
    x = 27,618.53

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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.