Finding the Fourth Proportional to 83,716.62, 115,477.74 and 49,702.02
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Solution
The fourth proportional to 83,716.62, 115,477.74 and 49,702.02 is: 68,558.39
Step by Step Solution
- Step 1: Write the proportion equation
83,716.62 : 115,477.74 = 49,702.02 : x - Step 2: Convert to fraction form
83,716.62/115,477.74 = 49,702.02/x - Step 3: Cross multiply
83,716.62x = 115,477.74 × 49,702.02 - Step 4: Simplify right side
83,716.62x = 5,739,476,943.03 - Step 5: Solve for x
x = 5,739,476,943.03/83,716.62 - Step 6: Final answer
x = 68,558.39
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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.