Finding the Fourth Proportional to 85,679.94, 118,229.79 and 49,874.70
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Solution
The fourth proportional to 85,679.94, 118,229.79 and 49,874.70 is: 68,822.12
Step by Step Solution
- Step 1: Write the proportion equation
85,679.94 : 118,229.79 = 49,874.70 : x - Step 2: Convert to fraction form
85,679.94/118,229.79 = 49,874.70/x - Step 3: Cross multiply
85,679.94x = 118,229.79 × 49,874.70 - Step 4: Simplify right side
85,679.94x = 5,896,675,307.31 - Step 5: Solve for x
x = 5,896,675,307.31/85,679.94 - Step 6: Final answer
x = 68,822.12
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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.