Finding the Fourth Proportional to 75,021.08, 103,480.32 and 48,120.98
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Solution
The fourth proportional to 75,021.08, 103,480.32 and 48,120.98 is: 66,375.67
Step by Step Solution
- Step 1: Write the proportion equation
75,021.08 : 103,480.32 = 48,120.98 : x - Step 2: Convert to fraction form
75,021.08/103,480.32 = 48,120.98/x - Step 3: Cross multiply
75,021.08x = 103,480.32 × 48,120.98 - Step 4: Simplify right side
75,021.08x = 4,979,574,409.11 - Step 5: Solve for x
x = 4,979,574,409.11/75,021.08 - Step 6: Final answer
x = 66,375.67
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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.