Finding the Fourth Proportional to 85,261.35, 117,660.42 and 49,472.31
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Solution
The fourth proportional to 85,261.35, 117,660.42 and 49,472.31 is: 68,271.65
Step by Step Solution
- Step 1: Write the proportion equation
85,261.35 : 117,660.42 = 49,472.31 : x - Step 2: Convert to fraction form
85,261.35/117,660.42 = 49,472.31/x - Step 3: Cross multiply
85,261.35x = 117,660.42 × 49,472.31 - Step 4: Simplify right side
85,261.35x = 5,820,932,772.97 - Step 5: Solve for x
x = 5,820,932,772.97/85,261.35 - Step 6: Final answer
x = 68,271.65
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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.