Finding the Fourth Proportional to 71,961.12, 107,937.48 and 27,586.08
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Solution
The fourth proportional to 71,961.12, 107,937.48 and 27,586.08 is: 41,377.51
Step by Step Solution
- Step 1: Write the proportion equation
71,961.12 : 107,937.48 = 27,586.08 : x - Step 2: Convert to fraction form
71,961.12/107,937.48 = 27,586.08/x - Step 3: Cross multiply
71,961.12x = 107,937.48 × 27,586.08 - Step 4: Simplify right side
71,961.12x = 2,977,571,958.28 - Step 5: Solve for x
x = 2,977,571,958.28/71,961.12 - Step 6: Final answer
x = 41,377.51
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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.