Finding the Fourth Proportional to 78,790.23, 108,744.57 and 46,961.19
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Solution
The fourth proportional to 78,790.23, 108,744.57 and 46,961.19 is: 64,814.82
Step by Step Solution
- Step 1: Write the proportion equation
78,790.23 : 108,744.57 = 46,961.19 : x - Step 2: Convert to fraction form
78,790.23/108,744.57 = 46,961.19/x - Step 3: Cross multiply
78,790.23x = 108,744.57 × 46,961.19 - Step 4: Simplify right side
78,790.23x = 5,106,774,413.24 - Step 5: Solve for x
x = 5,106,774,413.24/78,790.23 - Step 6: Final answer
x = 64,814.82
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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.