Home / 89,120.70-122,986.76-48,833.64

Finding the Fourth Proportional to 89,120.70, 122,986.76 and 48,833.64

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Solution

The fourth proportional to 89,120.70, 122,986.76 and 48,833.64 is: 67,390.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,120.70 : 122,986.76 = 48,833.64 : x
  2. Step 2: Convert to fraction form
    89,120.70/122,986.76 = 48,833.64/x
  3. Step 3: Cross multiply
    89,120.70x = 122,986.76 × 48,833.64
  4. Step 4: Simplify right side
    89,120.70x = 6,005,890,918.44
  5. Step 5: Solve for x
    x = 6,005,890,918.44/89,120.70
  6. Step 6: Final answer
    x = 67,390.53

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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.