Home / 65,919.92-98,896.62-19,172.79

Finding the Fourth Proportional to 65,919.92, 98,896.62 and 19,172.79

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Solution

The fourth proportional to 65,919.92, 98,896.62 and 19,172.79 is: 28,764.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,919.92 : 98,896.62 = 19,172.79 : x
  2. Step 2: Convert to fraction form
    65,919.92/98,896.62 = 19,172.79/x
  3. Step 3: Cross multiply
    65,919.92x = 98,896.62 × 19,172.79
  4. Step 4: Simplify right side
    65,919.92x = 1,896,124,055.07
  5. Step 5: Solve for x
    x = 1,896,124,055.07/65,919.92
  6. Step 6: Final answer
    x = 28,764.05

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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.