Home / 57,518.11-86,297.93-20,083.70

Finding the Fourth Proportional to 57,518.11, 86,297.93 and 20,083.70

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Solution

The fourth proportional to 57,518.11, 86,297.93 and 20,083.70 is: 30,132.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,518.11 : 86,297.93 = 20,083.70 : x
  2. Step 2: Convert to fraction form
    57,518.11/86,297.93 = 20,083.70/x
  3. Step 3: Cross multiply
    57,518.11x = 86,297.93 × 20,083.70
  4. Step 4: Simplify right side
    57,518.11x = 1,733,181,736.74
  5. Step 5: Solve for x
    x = 1,733,181,736.74/57,518.11
  6. Step 6: Final answer
    x = 30,132.80

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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.