Finding the Fourth Proportional to 74,076.09, 102,227.45 and 40,542.09
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Solution
The fourth proportional to 74,076.09, 102,227.45 and 40,542.09 is: 55,949.42
Step by Step Solution
- Step 1: Write the proportion equation
74,076.09 : 102,227.45 = 40,542.09 : x - Step 2: Convert to fraction form
74,076.09/102,227.45 = 40,542.09/x - Step 3: Cross multiply
74,076.09x = 102,227.45 × 40,542.09 - Step 4: Simplify right side
74,076.09x = 4,144,514,275.66 - Step 5: Solve for x
x = 4,144,514,275.66/74,076.09 - Step 6: Final answer
x = 55,949.42
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1.5x scale
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.