Finding the Fourth Proportional to 77,611.41, 116,380.26 and 35,478.99
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Solution
The fourth proportional to 77,611.41, 116,380.26 and 35,478.99 is: 53,201.64
Step by Step Solution
- Step 1: Write the proportion equation
77,611.41 : 116,380.26 = 35,478.99 : x - Step 2: Convert to fraction form
77,611.41/116,380.26 = 35,478.99/x - Step 3: Cross multiply
77,611.41x = 116,380.26 × 35,478.99 - Step 4: Simplify right side
77,611.41x = 4,129,054,080.74 - Step 5: Solve for x
x = 4,129,054,080.74/77,611.41 - Step 6: Final answer
x = 53,201.64
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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.