Home / 57,716.20-86,582.40-18,269.20

Finding the Fourth Proportional to 57,716.20, 86,582.40 and 18,269.20

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Solution

The fourth proportional to 57,716.20, 86,582.40 and 18,269.20 is: 27,406.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,716.20 : 86,582.40 = 18,269.20 : x
  2. Step 2: Convert to fraction form
    57,716.20/86,582.40 = 18,269.20/x
  3. Step 3: Cross multiply
    57,716.20x = 86,582.40 × 18,269.20
  4. Step 4: Simplify right side
    57,716.20x = 1,581,791,182.08
  5. Step 5: Solve for x
    x = 1,581,791,182.08/57,716.20
  6. Step 6: Final answer
    x = 27,406.36

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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.