Finding the Fourth Proportional to 86,310.19, 129,478.02 and 44,214.07
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Solution
The fourth proportional to 86,310.19, 129,478.02 and 44,214.07 is: 66,327.63
Step by Step Solution
- Step 1: Write the proportion equation
86,310.19 : 129,478.02 = 44,214.07 : x - Step 2: Convert to fraction form
86,310.19/129,478.02 = 44,214.07/x - Step 3: Cross multiply
86,310.19x = 129,478.02 × 44,214.07 - Step 4: Simplify right side
86,310.19x = 5,724,750,239.74 - Step 5: Solve for x
x = 5,724,750,239.74/86,310.19 - Step 6: Final answer
x = 66,327.63
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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.