Home / 75,857.20-113,788.44-28,467.48

Finding the Fourth Proportional to 75,857.20, 113,788.44 and 28,467.48

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Solution

The fourth proportional to 75,857.20, 113,788.44 and 28,467.48 is: 42,702.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,857.20 : 113,788.44 = 28,467.48 : x
  2. Step 2: Convert to fraction form
    75,857.20/113,788.44 = 28,467.48/x
  3. Step 3: Cross multiply
    75,857.20x = 113,788.44 × 28,467.48
  4. Step 4: Simplify right side
    75,857.20x = 3,239,270,139.93
  5. Step 5: Solve for x
    x = 3,239,270,139.93/75,857.20
  6. Step 6: Final answer
    x = 42,702.21

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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.