Finding the Fourth Proportional to 97,081.36, 133,971.97 and 54,639.88
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Solution
The fourth proportional to 97,081.36, 133,971.97 and 54,639.88 is: 75,402.86
Step by Step Solution
- Step 1: Write the proportion equation
97,081.36 : 133,971.97 = 54,639.88 : x - Step 2: Convert to fraction form
97,081.36/133,971.97 = 54,639.88/x - Step 3: Cross multiply
97,081.36x = 133,971.97 × 54,639.88 - Step 4: Simplify right side
97,081.36x = 7,320,212,364.16 - Step 5: Solve for x
x = 7,320,212,364.16/97,081.36 - Step 6: Final answer
x = 75,402.86
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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.