Home / 44,042.10-66,072.90-12,879.78

Finding the Fourth Proportional to 44,042.10, 66,072.90 and 12,879.78

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Solution

The fourth proportional to 44,042.10, 66,072.90 and 12,879.78 is: 19,322.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,042.10 : 66,072.90 = 12,879.78 : x
  2. Step 2: Convert to fraction form
    44,042.10/66,072.90 = 12,879.78/x
  3. Step 3: Cross multiply
    44,042.10x = 66,072.90 × 12,879.78
  4. Step 4: Simplify right side
    44,042.10x = 851,004,415.96
  5. Step 5: Solve for x
    x = 851,004,415.96/44,042.10
  6. Step 6: Final answer
    x = 19,322.52

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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.