Finding the Fourth Proportional to 73,874.39, 101,921.36 and 42,035.31
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Solution
The fourth proportional to 73,874.39, 101,921.36 and 42,035.31 is: 57,994.33
Step by Step Solution
- Step 1: Write the proportion equation
73,874.39 : 101,921.36 = 42,035.31 : x - Step 2: Convert to fraction form
73,874.39/101,921.36 = 42,035.31/x - Step 3: Cross multiply
73,874.39x = 101,921.36 × 42,035.31 - Step 4: Simplify right side
73,874.39x = 4,284,295,753.05 - Step 5: Solve for x
x = 4,284,295,753.05/73,874.39 - Step 6: Final answer
x = 57,994.33
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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.