Finding the Fourth Proportional to 92,428.49, 127,550.94 and 49,986.92
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Solution
The fourth proportional to 92,428.49, 127,550.94 and 49,986.92 is: 68,981.75
Step by Step Solution
- Step 1: Write the proportion equation
92,428.49 : 127,550.94 = 49,986.92 : x - Step 2: Convert to fraction form
92,428.49/127,550.94 = 49,986.92/x - Step 3: Cross multiply
92,428.49x = 127,550.94 × 49,986.92 - Step 4: Simplify right side
92,428.49x = 6,375,878,765.13 - Step 5: Solve for x
x = 6,375,878,765.13/92,428.49 - Step 6: Final answer
x = 68,981.75
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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.