Finding the Fourth Proportional to 68,425.77, 102,637.95 and 21,678.65
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Solution
The fourth proportional to 68,425.77, 102,637.95 and 21,678.65 is: 32,517.75
Step by Step Solution
- Step 1: Write the proportion equation
68,425.77 : 102,637.95 = 21,678.65 : x - Step 2: Convert to fraction form
68,425.77/102,637.95 = 21,678.65/x - Step 3: Cross multiply
68,425.77x = 102,637.95 × 21,678.65 - Step 4: Simplify right side
68,425.77x = 2,225,052,194.77 - Step 5: Solve for x
x = 2,225,052,194.77/68,425.77 - Step 6: Final answer
x = 32,517.75
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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.