Finding the Fourth Proportional to 75,643.81, 104,387.58 and 41,651.60
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Solution
The fourth proportional to 75,643.81, 104,387.58 and 41,651.60 is: 57,478.72
Step by Step Solution
- Step 1: Write the proportion equation
75,643.81 : 104,387.58 = 41,651.60 : x - Step 2: Convert to fraction form
75,643.81/104,387.58 = 41,651.60/x - Step 3: Cross multiply
75,643.81x = 104,387.58 × 41,651.60 - Step 4: Simplify right side
75,643.81x = 4,347,909,205.19 - Step 5: Solve for x
x = 4,347,909,205.19/75,643.81 - Step 6: Final answer
x = 57,478.72
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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.