Finding the Fourth Proportional to 74,723.40, 103,116.42 and 41,188.68
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Solution
The fourth proportional to 74,723.40, 103,116.42 and 41,188.68 is: 56,839.35
Step by Step Solution
- Step 1: Write the proportion equation
74,723.40 : 103,116.42 = 41,188.68 : x - Step 2: Convert to fraction form
74,723.40/103,116.42 = 41,188.68/x - Step 3: Cross multiply
74,723.40x = 103,116.42 × 41,188.68 - Step 4: Simplify right side
74,723.40x = 4,247,229,226.13 - Step 5: Solve for x
x = 4,247,229,226.13/74,723.40 - Step 6: Final answer
x = 56,839.35
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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.