Home / 54,829.12-75,664.32-29,678.56

Finding the Fourth Proportional to 54,829.12, 75,664.32 and 29,678.56

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Solution

The fourth proportional to 54,829.12, 75,664.32 and 29,678.56 is: 40,956.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,829.12 : 75,664.32 = 29,678.56 : x
  2. Step 2: Convert to fraction form
    54,829.12/75,664.32 = 29,678.56/x
  3. Step 3: Cross multiply
    54,829.12x = 75,664.32 × 29,678.56
  4. Step 4: Simplify right side
    54,829.12x = 2,245,608,060.98
  5. Step 5: Solve for x
    x = 2,245,608,060.98/54,829.12
  6. Step 6: Final answer
    x = 40,956.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.