Finding the Fourth Proportional to 76,681.91, 115,046.37 and 39,268.26
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Solution
The fourth proportional to 76,681.91, 115,046.37 and 39,268.26 is: 58,914.42
Step by Step Solution
- Step 1: Write the proportion equation
76,681.91 : 115,046.37 = 39,268.26 : x - Step 2: Convert to fraction form
76,681.91/115,046.37 = 39,268.26/x - Step 3: Cross multiply
76,681.91x = 115,046.37 × 39,268.26 - Step 4: Simplify right side
76,681.91x = 4,517,670,769.22 - Step 5: Solve for x
x = 4,517,670,769.22/76,681.91 - Step 6: Final answer
x = 58,914.42
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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.