Finding the Fourth Proportional to 78,117.15, 117,097.97 and 44,796.99
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Solution
The fourth proportional to 78,117.15, 117,097.97 and 44,796.99 is: 67,150.89
Step by Step Solution
- Step 1: Write the proportion equation
78,117.15 : 117,097.97 = 44,796.99 : x - Step 2: Convert to fraction form
78,117.15/117,097.97 = 44,796.99/x - Step 3: Cross multiply
78,117.15x = 117,097.97 × 44,796.99 - Step 4: Simplify right side
78,117.15x = 5,245,636,367.13 - Step 5: Solve for x
x = 5,245,636,367.13/78,117.15 - Step 6: Final answer
x = 67,150.89
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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.