Finding the Fourth Proportional to 98,571.11, 136,027.98 and 56,129.65
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Solution
The fourth proportional to 98,571.11, 136,027.98 and 56,129.65 is: 77,458.83
Step by Step Solution
- Step 1: Write the proportion equation
98,571.11 : 136,027.98 = 56,129.65 : x - Step 2: Convert to fraction form
98,571.11/136,027.98 = 56,129.65/x - Step 3: Cross multiply
98,571.11x = 136,027.98 × 56,129.65 - Step 4: Simplify right side
98,571.11x = 7,635,202,567.54 - Step 5: Solve for x
x = 7,635,202,567.54/98,571.11 - Step 6: Final answer
x = 77,458.83
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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.