Home / 75,531.66-113,200.58-31,189.56

Finding the Fourth Proportional to 75,531.66, 113,200.58 and 31,189.56

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Solution

The fourth proportional to 75,531.66, 113,200.58 and 31,189.56 is: 46,744.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,531.66 : 113,200.58 = 31,189.56 : x
  2. Step 2: Convert to fraction form
    75,531.66/113,200.58 = 31,189.56/x
  3. Step 3: Cross multiply
    75,531.66x = 113,200.58 × 31,189.56
  4. Step 4: Simplify right side
    75,531.66x = 3,530,676,281.94
  5. Step 5: Solve for x
    x = 3,530,676,281.94/75,531.66
  6. Step 6: Final answer
    x = 46,744.32

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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.