Finding the Fourth Proportional to 68,252.28, 102,378.68 and 20,867.18
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Solution
The fourth proportional to 68,252.28, 102,378.68 and 20,867.18 is: 31,300.84
Step by Step Solution
- Step 1: Write the proportion equation
68,252.28 : 102,378.68 = 20,867.18 : x - Step 2: Convert to fraction form
68,252.28/102,378.68 = 20,867.18/x - Step 3: Cross multiply
68,252.28x = 102,378.68 × 20,867.18 - Step 4: Simplify right side
68,252.28x = 2,136,353,727.49 - Step 5: Solve for x
x = 2,136,353,727.49/68,252.28 - Step 6: Final answer
x = 31,300.84
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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.