Finding the Fourth Proportional to 74,713.96, 103,105.26 and 40,722.48
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Solution
The fourth proportional to 74,713.96, 103,105.26 and 40,722.48 is: 56,197.02
Step by Step Solution
- Step 1: Write the proportion equation
74,713.96 : 103,105.26 = 40,722.48 : x - Step 2: Convert to fraction form
74,713.96/103,105.26 = 40,722.48/x - Step 3: Cross multiply
74,713.96x = 103,105.26 × 40,722.48 - Step 4: Simplify right side
74,713.96x = 4,198,701,888.24 - Step 5: Solve for x
x = 4,198,701,888.24/74,713.96 - Step 6: Final answer
x = 56,197.02
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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.