Home / 75,809.39-113,755.19-31,466.54

Finding the Fourth Proportional to 75,809.39, 113,755.19 and 31,466.54

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Solution

The fourth proportional to 75,809.39, 113,755.19 and 31,466.54 is: 47,216.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,809.39 : 113,755.19 = 31,466.54 : x
  2. Step 2: Convert to fraction form
    75,809.39/113,755.19 = 31,466.54/x
  3. Step 3: Cross multiply
    75,809.39x = 113,755.19 × 31,466.54
  4. Step 4: Simplify right side
    75,809.39x = 3,579,482,363.40
  5. Step 5: Solve for x
    x = 3,579,482,363.40/75,809.39
  6. Step 6: Final answer
    x = 47,216.88

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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.