Home / 68,083.79-102,128.43-23,715.03

Finding the Fourth Proportional to 68,083.79, 102,128.43 and 23,715.03

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Solution

The fourth proportional to 68,083.79, 102,128.43 and 23,715.03 is: 35,573.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,083.79 : 102,128.43 = 23,715.03 : x
  2. Step 2: Convert to fraction form
    68,083.79/102,128.43 = 23,715.03/x
  3. Step 3: Cross multiply
    68,083.79x = 102,128.43 × 23,715.03
  4. Step 4: Simplify right side
    68,083.79x = 2,421,978,781.30
  5. Step 5: Solve for x
    x = 2,421,978,781.30/68,083.79
  6. Step 6: Final answer
    x = 35,573.50

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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.