Home / 49,057.60-73,586.40-12,121.60

Finding the Fourth Proportional to 49,057.60, 73,586.40 and 12,121.60

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Solution

The fourth proportional to 49,057.60, 73,586.40 and 12,121.60 is: 18,182.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,057.60 : 73,586.40 = 12,121.60 : x
  2. Step 2: Convert to fraction form
    49,057.60/73,586.40 = 12,121.60/x
  3. Step 3: Cross multiply
    49,057.60x = 73,586.40 × 12,121.60
  4. Step 4: Simplify right side
    49,057.60x = 891,984,906.24
  5. Step 5: Solve for x
    x = 891,984,906.24/49,057.60
  6. Step 6: Final answer
    x = 18,182.40

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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.