Finding the Fourth Proportional to 78,193.97, 117,272.97 and 46,612.95
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Solution
The fourth proportional to 78,193.97, 117,272.97 and 46,612.95 is: 69,908.70
Step by Step Solution
- Step 1: Write the proportion equation
78,193.97 : 117,272.97 = 46,612.95 : x - Step 2: Convert to fraction form
78,193.97/117,272.97 = 46,612.95/x - Step 3: Cross multiply
78,193.97x = 117,272.97 × 46,612.95 - Step 4: Simplify right side
78,193.97x = 5,466,439,086.96 - Step 5: Solve for x
x = 5,466,439,086.96/78,193.97 - Step 6: Final answer
x = 69,908.70
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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.