Finding the Fourth Proportional to 70,272.68, 105,240.11 and 40,195.74
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Solution
The fourth proportional to 70,272.68, 105,240.11 and 40,195.74 is: 60,196.99
Step by Step Solution
- Step 1: Write the proportion equation
70,272.68 : 105,240.11 = 40,195.74 : x - Step 2: Convert to fraction form
70,272.68/105,240.11 = 40,195.74/x - Step 3: Cross multiply
70,272.68x = 105,240.11 × 40,195.74 - Step 4: Simplify right side
70,272.68x = 4,230,204,099.13 - Step 5: Solve for x
x = 4,230,204,099.13/70,272.68 - Step 6: Final answer
x = 60,196.99
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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.