Home / 51,382.78-70,917.26-29,879.18

Finding the Fourth Proportional to 51,382.78, 70,917.26 and 29,879.18

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Solution

The fourth proportional to 51,382.78, 70,917.26 and 29,879.18 is: 41,238.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,382.78 : 70,917.26 = 29,879.18 : x
  2. Step 2: Convert to fraction form
    51,382.78/70,917.26 = 29,879.18/x
  3. Step 3: Cross multiply
    51,382.78x = 70,917.26 × 29,879.18
  4. Step 4: Simplify right side
    51,382.78x = 2,118,949,072.66
  5. Step 5: Solve for x
    x = 2,118,949,072.66/51,382.78
  6. Step 6: Final answer
    x = 41,238.51

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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.