Finding the Fourth Proportional to 71,204.12, 106,712.75 and 52,396.09
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Solution
The fourth proportional to 71,204.12, 106,712.75 and 52,396.09 is: 78,525.38
Step by Step Solution
- Step 1: Write the proportion equation
71,204.12 : 106,712.75 = 52,396.09 : x - Step 2: Convert to fraction form
71,204.12/106,712.75 = 52,396.09/x - Step 3: Cross multiply
71,204.12x = 106,712.75 × 52,396.09 - Step 4: Simplify right side
71,204.12x = 5,591,330,853.15 - Step 5: Solve for x
x = 5,591,330,853.15/71,204.12 - Step 6: Final answer
x = 78,525.38
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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.