Finding the Fourth Proportional to 99,696.36, 137,576.12 and 59,409.23
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Solution
The fourth proportional to 99,696.36, 137,576.12 and 59,409.23 is: 81,981.84
Step by Step Solution
- Step 1: Write the proportion equation
99,696.36 : 137,576.12 = 59,409.23 : x - Step 2: Convert to fraction form
99,696.36/137,576.12 = 59,409.23/x - Step 3: Cross multiply
99,696.36x = 137,576.12 × 59,409.23 - Step 4: Simplify right side
99,696.36x = 8,173,290,816.23 - Step 5: Solve for x
x = 8,173,290,816.23/99,696.36 - Step 6: Final answer
x = 81,981.84
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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.