Finding the Fourth Proportional to 96,721.92, 133,478.64 and 54,283.68
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Solution
The fourth proportional to 96,721.92, 133,478.64 and 54,283.68 is: 74,912.82
Step by Step Solution
- Step 1: Write the proportion equation
96,721.92 : 133,478.64 = 54,283.68 : x - Step 2: Convert to fraction form
96,721.92/133,478.64 = 54,283.68/x - Step 3: Cross multiply
96,721.92x = 133,478.64 × 54,283.68 - Step 4: Simplify right side
96,721.92x = 7,245,711,780.60 - Step 5: Solve for x
x = 7,245,711,780.60/96,721.92 - Step 6: Final answer
x = 74,912.82
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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.