Home / 75,723.06-113,512.26-28,325.31

Finding the Fourth Proportional to 75,723.06, 113,512.26 and 28,325.31

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Solution

The fourth proportional to 75,723.06, 113,512.26 and 28,325.31 is: 42,460.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,723.06 : 113,512.26 = 28,325.31 : x
  2. Step 2: Convert to fraction form
    75,723.06/113,512.26 = 28,325.31/x
  3. Step 3: Cross multiply
    75,723.06x = 113,512.26 × 28,325.31
  4. Step 4: Simplify right side
    75,723.06x = 3,215,269,953.30
  5. Step 5: Solve for x
    x = 3,215,269,953.30/75,723.06
  6. Step 6: Final answer
    x = 42,460.91

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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.