Finding the Fourth Proportional to 78,812.19, 118,062.77 and 59,112.99
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Solution
The fourth proportional to 78,812.19, 118,062.77 and 59,112.99 is: 88,552.84
Step by Step Solution
- Step 1: Write the proportion equation
78,812.19 : 118,062.77 = 59,112.99 : x - Step 2: Convert to fraction form
78,812.19/118,062.77 = 59,112.99/x - Step 3: Cross multiply
78,812.19x = 118,062.77 × 59,112.99 - Step 4: Simplify right side
78,812.19x = 6,979,043,046.82 - Step 5: Solve for x
x = 6,979,043,046.82/78,812.19 - Step 6: Final answer
x = 88,552.84
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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.