Finding the Fourth Proportional to 75,611.40, 104,331.53 and 43,340.09
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Solution
The fourth proportional to 75,611.40, 104,331.53 and 43,340.09 is: 59,802.32
Step by Step Solution
- Step 1: Write the proportion equation
75,611.40 : 104,331.53 = 43,340.09 : x - Step 2: Convert to fraction form
75,611.40/104,331.53 = 43,340.09/x - Step 3: Cross multiply
75,611.40x = 104,331.53 × 43,340.09 - Step 4: Simplify right side
75,611.40x = 4,521,737,161.68 - Step 5: Solve for x
x = 4,521,737,161.68/75,611.40 - Step 6: Final answer
x = 59,802.32
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.