Finding the Fourth Proportional to 73,018.68, 100,765.74 and 39,484.68
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Solution
The fourth proportional to 73,018.68, 100,765.74 and 39,484.68 is: 54,488.84
Step by Step Solution
- Step 1: Write the proportion equation
73,018.68 : 100,765.74 = 39,484.68 : x - Step 2: Convert to fraction form
73,018.68/100,765.74 = 39,484.68/x - Step 3: Cross multiply
73,018.68x = 100,765.74 × 39,484.68 - Step 4: Simplify right side
73,018.68x = 3,978,702,998.86 - Step 5: Solve for x
x = 3,978,702,998.86/73,018.68 - Step 6: Final answer
x = 54,488.84
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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.