Home / 57,816.20-86,726.70-18,372.20

Finding the Fourth Proportional to 57,816.20, 86,726.70 and 18,372.20

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Solution

The fourth proportional to 57,816.20, 86,726.70 and 18,372.20 is: 27,559.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,816.20 : 86,726.70 = 18,372.20 : x
  2. Step 2: Convert to fraction form
    57,816.20/86,726.70 = 18,372.20/x
  3. Step 3: Cross multiply
    57,816.20x = 86,726.70 × 18,372.20
  4. Step 4: Simplify right side
    57,816.20x = 1,593,360,277.74
  5. Step 5: Solve for x
    x = 1,593,360,277.74/57,816.20
  6. Step 6: Final answer
    x = 27,559.06

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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.