Finding the Fourth Proportional to 78,520.97, 108,318.79 and 46,232.75
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Solution
The fourth proportional to 78,520.97, 108,318.79 and 46,232.75 is: 63,777.56
Step by Step Solution
- Step 1: Write the proportion equation
78,520.97 : 108,318.79 = 46,232.75 : x - Step 2: Convert to fraction form
78,520.97/108,318.79 = 46,232.75/x - Step 3: Cross multiply
78,520.97x = 108,318.79 × 46,232.75 - Step 4: Simplify right side
78,520.97x = 5,007,875,538.37 - Step 5: Solve for x
x = 5,007,875,538.37/78,520.97 - Step 6: Final answer
x = 63,777.56
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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.