Finding the Fourth Proportional to 86,447.30, 129,619.11 and 33,794.06
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Solution
The fourth proportional to 86,447.30, 129,619.11 and 33,794.06 is: 50,670.82
Step by Step Solution
- Step 1: Write the proportion equation
86,447.30 : 129,619.11 = 33,794.06 : x - Step 2: Convert to fraction form
86,447.30/129,619.11 = 33,794.06/x - Step 3: Cross multiply
86,447.30x = 129,619.11 × 33,794.06 - Step 4: Simplify right side
86,447.30x = 4,380,355,980.49 - Step 5: Solve for x
x = 4,380,355,980.49/86,447.30 - Step 6: Final answer
x = 50,670.82
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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.