Finding the Fourth Proportional to 73,722.21, 101,736.63 and 40,188.21
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Solution
The fourth proportional to 73,722.21, 101,736.63 and 40,188.21 is: 55,459.72
Step by Step Solution
- Step 1: Write the proportion equation
73,722.21 : 101,736.63 = 40,188.21 : x - Step 2: Convert to fraction form
73,722.21/101,736.63 = 40,188.21/x - Step 3: Cross multiply
73,722.21x = 101,736.63 × 40,188.21 - Step 4: Simplify right side
73,722.21x = 4,088,613,051.13 - Step 5: Solve for x
x = 4,088,613,051.13/73,722.21 - Step 6: Final answer
x = 55,459.72
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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.