Finding the Fourth Proportional to 85,851.80, 118,475.11 and 48,126.05
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Solution
The fourth proportional to 85,851.80, 118,475.11 and 48,126.05 is: 66,413.74
Step by Step Solution
- Step 1: Write the proportion equation
85,851.80 : 118,475.11 = 48,126.05 : x - Step 2: Convert to fraction form
85,851.80/118,475.11 = 48,126.05/x - Step 3: Cross multiply
85,851.80x = 118,475.11 × 48,126.05 - Step 4: Simplify right side
85,851.80x = 5,701,738,708.97 - Step 5: Solve for x
x = 5,701,738,708.97/85,851.80 - Step 6: Final answer
x = 66,413.74
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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.