Finding the Fourth Proportional to 79,042.26, 117,999.95 and 76,273.68
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Solution
The fourth proportional to 79,042.26, 117,999.95 and 76,273.68 is: 113,866.82
Step by Step Solution
- Step 1: Write the proportion equation
79,042.26 : 117,999.95 = 76,273.68 : x - Step 2: Convert to fraction form
79,042.26/117,999.95 = 76,273.68/x - Step 3: Cross multiply
79,042.26x = 117,999.95 × 76,273.68 - Step 4: Simplify right side
79,042.26x = 9,000,290,426.32 - Step 5: Solve for x
x = 9,000,290,426.32/79,042.26 - Step 6: Final answer
x = 113,866.82
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.