Finding the Fourth Proportional to 99,239.38, 136,950.54 and 53,916.94
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Solution
The fourth proportional to 99,239.38, 136,950.54 and 53,916.94 is: 74,405.48
Step by Step Solution
- Step 1: Write the proportion equation
99,239.38 : 136,950.54 = 53,916.94 : x - Step 2: Convert to fraction form
99,239.38/136,950.54 = 53,916.94/x - Step 3: Cross multiply
99,239.38x = 136,950.54 × 53,916.94 - Step 4: Simplify right side
99,239.38x = 7,383,954,048.15 - Step 5: Solve for x
x = 7,383,954,048.15/99,239.38 - Step 6: Final answer
x = 74,405.48
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1.5x scale
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.