Finding the Fourth Proportional to 75,561.62, 113,259.27 and 31,164.08
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Solution
The fourth proportional to 75,561.62, 113,259.27 and 31,164.08 is: 46,711.82
Step by Step Solution
- Step 1: Write the proportion equation
75,561.62 : 113,259.27 = 31,164.08 : x - Step 2: Convert to fraction form
75,561.62/113,259.27 = 31,164.08/x - Step 3: Cross multiply
75,561.62x = 113,259.27 × 31,164.08 - Step 4: Simplify right side
75,561.62x = 3,529,620,951.02 - Step 5: Solve for x
x = 3,529,620,951.02/75,561.62 - Step 6: Final answer
x = 46,711.82
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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.