Finding the Fourth Proportional to 91,198.08, 125,851.20 and 51,454.08
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Solution
The fourth proportional to 91,198.08, 125,851.20 and 51,454.08 is: 71,005.42
Step by Step Solution
- Step 1: Write the proportion equation
91,198.08 : 125,851.20 = 51,454.08 : x - Step 2: Convert to fraction form
91,198.08/125,851.20 = 51,454.08/x - Step 3: Cross multiply
91,198.08x = 125,851.20 × 51,454.08 - Step 4: Simplify right side
91,198.08x = 6,475,557,712.90 - Step 5: Solve for x
x = 6,475,557,712.90/91,198.08 - Step 6: Final answer
x = 71,005.42
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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.