Finding the Fourth Proportional to 76,674.84, 105,810.12 and 44,413.80
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Solution
The fourth proportional to 76,674.84, 105,810.12 and 44,413.80 is: 61,290.37
Step by Step Solution
- Step 1: Write the proportion equation
76,674.84 : 105,810.12 = 44,413.80 : x - Step 2: Convert to fraction form
76,674.84/105,810.12 = 44,413.80/x - Step 3: Cross multiply
76,674.84x = 105,810.12 × 44,413.80 - Step 4: Simplify right side
76,674.84x = 4,699,429,507.66 - Step 5: Solve for x
x = 4,699,429,507.66/76,674.84 - Step 6: Final answer
x = 61,290.37
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1.5x scale
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.