Finding the Fourth Proportional to 74,879.06, 103,445.82 and 49,098.84
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Solution
The fourth proportional to 74,879.06, 103,445.82 and 49,098.84 is: 67,830.31
Step by Step Solution
- Step 1: Write the proportion equation
74,879.06 : 103,445.82 = 49,098.84 : x - Step 2: Convert to fraction form
74,879.06/103,445.82 = 49,098.84/x - Step 3: Cross multiply
74,879.06x = 103,445.82 × 49,098.84 - Step 4: Simplify right side
74,879.06x = 5,079,069,764.85 - Step 5: Solve for x
x = 5,079,069,764.85/74,879.06 - Step 6: Final answer
x = 67,830.31
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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.