Home / 71,868.06-107,809.38-27,531.90

Finding the Fourth Proportional to 71,868.06, 107,809.38 and 27,531.90

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Solution

The fourth proportional to 71,868.06, 107,809.38 and 27,531.90 is: 41,300.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,868.06 : 107,809.38 = 27,531.90 : x
  2. Step 2: Convert to fraction form
    71,868.06/107,809.38 = 27,531.90/x
  3. Step 3: Cross multiply
    71,868.06x = 107,809.38 × 27,531.90
  4. Step 4: Simplify right side
    71,868.06x = 2,968,197,069.22
  5. Step 5: Solve for x
    x = 2,968,197,069.22/71,868.06
  6. Step 6: Final answer
    x = 41,300.64

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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.