Home / 66,190.36-99,285.42-28,745.56

Finding the Fourth Proportional to 66,190.36, 99,285.42 and 28,745.56

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Solution

The fourth proportional to 66,190.36, 99,285.42 and 28,745.56 is: 43,118.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,190.36 : 99,285.42 = 28,745.56 : x
  2. Step 2: Convert to fraction form
    66,190.36/99,285.42 = 28,745.56/x
  3. Step 3: Cross multiply
    66,190.36x = 99,285.42 × 28,745.56
  4. Step 4: Simplify right side
    66,190.36x = 2,854,014,997.74
  5. Step 5: Solve for x
    x = 2,854,014,997.74/66,190.36
  6. Step 6: Final answer
    x = 43,118.29

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1.5x scale

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.