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Finding the Fourth Proportional to 44,048.40, 66,072.60 and 12,879.60

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Solution

The fourth proportional to 44,048.40, 66,072.60 and 12,879.60 is: 19,319.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,048.40 : 66,072.60 = 12,879.60 : x
  2. Step 2: Convert to fraction form
    44,048.40/66,072.60 = 12,879.60/x
  3. Step 3: Cross multiply
    44,048.40x = 66,072.60 × 12,879.60
  4. Step 4: Simplify right side
    44,048.40x = 850,988,658.96
  5. Step 5: Solve for x
    x = 850,988,658.96/44,048.40
  6. Step 6: Final answer
    x = 19,319.40

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1.5x scale

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.