Finding the Fourth Proportional to 78,396.58, 108,232.18 and 51,616.94
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Solution
The fourth proportional to 78,396.58, 108,232.18 and 51,616.94 is: 71,260.94
Step by Step Solution
- Step 1: Write the proportion equation
78,396.58 : 108,232.18 = 51,616.94 : x - Step 2: Convert to fraction form
78,396.58/108,232.18 = 51,616.94/x - Step 3: Cross multiply
78,396.58x = 108,232.18 × 51,616.94 - Step 4: Simplify right side
78,396.58x = 5,586,613,941.13 - Step 5: Solve for x
x = 5,586,613,941.13/78,396.58 - Step 6: Final answer
x = 71,260.94
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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.