Finding the Fourth Proportional to 89,515.51, 123,531.84 and 49,231.84
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Solution
The fourth proportional to 89,515.51, 123,531.84 and 49,231.84 is: 67,940.19
Step by Step Solution
- Step 1: Write the proportion equation
89,515.51 : 123,531.84 = 49,231.84 : x - Step 2: Convert to fraction form
89,515.51/123,531.84 = 49,231.84/x - Step 3: Cross multiply
89,515.51x = 123,531.84 × 49,231.84 - Step 4: Simplify right side
89,515.51x = 6,081,700,275.23 - Step 5: Solve for x
x = 6,081,700,275.23/89,515.51 - Step 6: Final answer
x = 67,940.19
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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.