Finding the Fourth Proportional to 66,916.26, 100,413.26 and 29,980.26
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Solution
The fourth proportional to 66,916.26, 100,413.26 and 29,980.26 is: 44,987.80
Step by Step Solution
- Step 1: Write the proportion equation
66,916.26 : 100,413.26 = 29,980.26 : x - Step 2: Convert to fraction form
66,916.26/100,413.26 = 29,980.26/x - Step 3: Cross multiply
66,916.26x = 100,413.26 × 29,980.26 - Step 4: Simplify right side
66,916.26x = 3,010,415,642.25 - Step 5: Solve for x
x = 3,010,415,642.25/66,916.26 - Step 6: Final answer
x = 44,987.80
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.