Finding the Fourth Proportional to 68,218.91, 102,240.12 and 47,125.29
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Solution
The fourth proportional to 68,218.91, 102,240.12 and 47,125.29 is: 70,626.99
Step by Step Solution
- Step 1: Write the proportion equation
68,218.91 : 102,240.12 = 47,125.29 : x - Step 2: Convert to fraction form
68,218.91/102,240.12 = 47,125.29/x - Step 3: Cross multiply
68,218.91x = 102,240.12 × 47,125.29 - Step 4: Simplify right side
68,218.91x = 4,818,095,864.76 - Step 5: Solve for x
x = 4,818,095,864.76/68,218.91 - Step 6: Final answer
x = 70,626.99
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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.