Home / 67,260.74-100,891.07-31,713.76

Finding the Fourth Proportional to 67,260.74, 100,891.07 and 31,713.76

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Solution

The fourth proportional to 67,260.74, 100,891.07 and 31,713.76 is: 47,570.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,260.74 : 100,891.07 = 31,713.76 : x
  2. Step 2: Convert to fraction form
    67,260.74/100,891.07 = 31,713.76/x
  3. Step 3: Cross multiply
    67,260.74x = 100,891.07 × 31,713.76
  4. Step 4: Simplify right side
    67,260.74x = 3,199,634,517.10
  5. Step 5: Solve for x
    x = 3,199,634,517.10/67,260.74
  6. Step 6: Final answer
    x = 47,570.61

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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.