Finding the Fourth Proportional to 68,382.09, 102,235.95 and 57,968.32
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Solution
The fourth proportional to 68,382.09, 102,235.95 and 57,968.32 is: 86,666.64
Step by Step Solution
- Step 1: Write the proportion equation
68,382.09 : 102,235.95 = 57,968.32 : x - Step 2: Convert to fraction form
68,382.09/102,235.95 = 57,968.32/x - Step 3: Cross multiply
68,382.09x = 102,235.95 × 57,968.32 - Step 4: Simplify right side
68,382.09x = 5,926,446,265.10 - Step 5: Solve for x
x = 5,926,446,265.10/68,382.09 - Step 6: Final answer
x = 86,666.64
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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.