Finding the Fourth Proportional to 75,456.14, 113,208.72 and 36,008.12
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Solution
The fourth proportional to 75,456.14, 113,208.72 and 36,008.12 is: 54,023.88
Step by Step Solution
- Step 1: Write the proportion equation
75,456.14 : 113,208.72 = 36,008.12 : x - Step 2: Convert to fraction form
75,456.14/113,208.72 = 36,008.12/x - Step 3: Cross multiply
75,456.14x = 113,208.72 × 36,008.12 - Step 4: Simplify right side
75,456.14x = 4,076,433,174.81 - Step 5: Solve for x
x = 4,076,433,174.81/75,456.14 - Step 6: Final answer
x = 54,023.88
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.