Finding the Fourth Proportional to 84,116.23, 125,916.72 and 54,475.09
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Solution
The fourth proportional to 84,116.23, 125,916.72 and 54,475.09 is: 81,545.79
Step by Step Solution
- Step 1: Write the proportion equation
84,116.23 : 125,916.72 = 54,475.09 : x - Step 2: Convert to fraction form
84,116.23/125,916.72 = 54,475.09/x - Step 3: Cross multiply
84,116.23x = 125,916.72 × 54,475.09 - Step 4: Simplify right side
84,116.23x = 6,859,324,654.50 - Step 5: Solve for x
x = 6,859,324,654.50/84,116.23 - Step 6: Final answer
x = 81,545.79
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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.