Home / 85,991.32-129,023.94-44,467.48

Finding the Fourth Proportional to 85,991.32, 129,023.94 and 44,467.48

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Solution

The fourth proportional to 85,991.32, 129,023.94 and 44,467.48 is: 66,720.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,991.32 : 129,023.94 = 44,467.48 : x
  2. Step 2: Convert to fraction form
    85,991.32/129,023.94 = 44,467.48/x
  3. Step 3: Cross multiply
    85,991.32x = 129,023.94 × 44,467.48
  4. Step 4: Simplify right side
    85,991.32x = 5,737,369,471.47
  5. Step 5: Solve for x
    x = 5,737,369,471.47/85,991.32
  6. Step 6: Final answer
    x = 66,720.33

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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.