Home / 75,822.22-113,653.29-28,406.34

Finding the Fourth Proportional to 75,822.22, 113,653.29 and 28,406.34

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Solution

The fourth proportional to 75,822.22, 113,653.29 and 28,406.34 is: 42,579.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,822.22 : 113,653.29 = 28,406.34 : x
  2. Step 2: Convert to fraction form
    75,822.22/113,653.29 = 28,406.34/x
  3. Step 3: Cross multiply
    75,822.22x = 113,653.29 × 28,406.34
  4. Step 4: Simplify right side
    75,822.22x = 3,228,474,104.38
  5. Step 5: Solve for x
    x = 3,228,474,104.38/75,822.22
  6. Step 6: Final answer
    x = 42,579.52

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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.