Finding the Fourth Proportional to 87,696.60, 121,033.14 and 49,463.97
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Solution
The fourth proportional to 87,696.60, 121,033.14 and 49,463.97 is: 68,266.95
Step by Step Solution
- Step 1: Write the proportion equation
87,696.60 : 121,033.14 = 49,463.97 : x - Step 2: Convert to fraction form
87,696.60/121,033.14 = 49,463.97/x - Step 3: Cross multiply
87,696.60x = 121,033.14 × 49,463.97 - Step 4: Simplify right side
87,696.60x = 5,986,779,605.97 - Step 5: Solve for x
x = 5,986,779,605.97/87,696.60 - Step 6: Final answer
x = 68,266.95
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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.