Finding the Fourth Proportional to 79,577.36, 119,365.49 and 20,413.07
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Solution
The fourth proportional to 79,577.36, 119,365.49 and 20,413.07 is: 30,619.46
Step by Step Solution
- Step 1: Write the proportion equation
79,577.36 : 119,365.49 = 20,413.07 : x - Step 2: Convert to fraction form
79,577.36/119,365.49 = 20,413.07/x - Step 3: Cross multiply
79,577.36x = 119,365.49 × 20,413.07 - Step 4: Simplify right side
79,577.36x = 2,436,615,557.16 - Step 5: Solve for x
x = 2,436,615,557.16/79,577.36 - Step 6: Final answer
x = 30,619.46
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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.