Finding the Fourth Proportional to 84,211.84, 126,233.28 and 28,769.92
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Solution
The fourth proportional to 84,211.84, 126,233.28 and 28,769.92 is: 43,126.02
Step by Step Solution
- Step 1: Write the proportion equation
84,211.84 : 126,233.28 = 28,769.92 : x - Step 2: Convert to fraction form
84,211.84/126,233.28 = 28,769.92/x - Step 3: Cross multiply
84,211.84x = 126,233.28 × 28,769.92 - Step 4: Simplify right side
84,211.84x = 3,631,721,366.94 - Step 5: Solve for x
x = 3,631,721,366.94/84,211.84 - Step 6: Final answer
x = 43,126.02
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.