Finding the Fourth Proportional to 71,351.70, 107,027.55 and 43,703.70
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Solution
The fourth proportional to 71,351.70, 107,027.55 and 43,703.70 is: 65,555.55
Step by Step Solution
- Step 1: Write the proportion equation
71,351.70 : 107,027.55 = 43,703.70 : x - Step 2: Convert to fraction form
71,351.70/107,027.55 = 43,703.70/x - Step 3: Cross multiply
71,351.70x = 107,027.55 × 43,703.70 - Step 4: Simplify right side
71,351.70x = 4,677,499,936.94 - Step 5: Solve for x
x = 4,677,499,936.94/71,351.70 - Step 6: Final answer
x = 65,555.55
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1.5x scale
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.