Home / 86,620.05-129,942.38-26,653.50

Finding the Fourth Proportional to 86,620.05, 129,942.38 and 26,653.50

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Solution

The fourth proportional to 86,620.05, 129,942.38 and 26,653.50 is: 39,984.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,620.05 : 129,942.38 = 26,653.50 : x
  2. Step 2: Convert to fraction form
    86,620.05/129,942.38 = 26,653.50/x
  3. Step 3: Cross multiply
    86,620.05x = 129,942.38 × 26,653.50
  4. Step 4: Simplify right side
    86,620.05x = 3,463,419,092.06
  5. Step 5: Solve for x
    x = 3,463,419,092.06/86,620.05
  6. Step 6: Final answer
    x = 39,984.03

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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.