Finding the Fourth Proportional to 85,696.68, 118,262.66 and 49,378.08
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Solution
The fourth proportional to 85,696.68, 118,262.66 and 49,378.08 is: 68,142.47
Step by Step Solution
- Step 1: Write the proportion equation
85,696.68 : 118,262.66 = 49,378.08 : x - Step 2: Convert to fraction form
85,696.68/118,262.66 = 49,378.08/x - Step 3: Cross multiply
85,696.68x = 118,262.66 × 49,378.08 - Step 4: Simplify right side
85,696.68x = 5,839,583,086.49 - Step 5: Solve for x
x = 5,839,583,086.49/85,696.68 - Step 6: Final answer
x = 68,142.47
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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.