Home / 55,855.12-83,788.85-16,415.31

Finding the Fourth Proportional to 55,855.12, 83,788.85 and 16,415.31

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Solution

The fourth proportional to 55,855.12, 83,788.85 and 16,415.31 is: 24,624.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,855.12 : 83,788.85 = 16,415.31 : x
  2. Step 2: Convert to fraction form
    55,855.12/83,788.85 = 16,415.31/x
  3. Step 3: Cross multiply
    55,855.12x = 83,788.85 × 16,415.31
  4. Step 4: Simplify right side
    55,855.12x = 1,375,419,947.29
  5. Step 5: Solve for x
    x = 1,375,419,947.29/55,855.12
  6. Step 6: Final answer
    x = 24,624.78

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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.