Home / 66,586.86-91,890.18-36,372.60

Finding the Fourth Proportional to 66,586.86, 91,890.18 and 36,372.60

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Solution

The fourth proportional to 66,586.86, 91,890.18 and 36,372.60 is: 50,194.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,586.86 : 91,890.18 = 36,372.60 : x
  2. Step 2: Convert to fraction form
    66,586.86/91,890.18 = 36,372.60/x
  3. Step 3: Cross multiply
    66,586.86x = 91,890.18 × 36,372.60
  4. Step 4: Simplify right side
    66,586.86x = 3,342,284,761.07
  5. Step 5: Solve for x
    x = 3,342,284,761.07/66,586.86
  6. Step 6: Final answer
    x = 50,194.36

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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.