Finding the Fourth Proportional to 75,571.12, 104,134.26 and 58,471.48
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Solution
The fourth proportional to 75,571.12, 104,134.26 and 58,471.48 is: 80,571.58
Step by Step Solution
- Step 1: Write the proportion equation
75,571.12 : 104,134.26 = 58,471.48 : x - Step 2: Convert to fraction form
75,571.12/104,134.26 = 58,471.48/x - Step 3: Cross multiply
75,571.12x = 104,134.26 × 58,471.48 - Step 4: Simplify right side
75,571.12x = 6,088,884,300.90 - Step 5: Solve for x
x = 6,088,884,300.90/75,571.12 - Step 6: Final answer
x = 80,571.58
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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.