Finding the Fourth Proportional to 71,780.88, 107,652.68 and 27,394.48
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Solution
The fourth proportional to 71,780.88, 107,652.68 and 27,394.48 is: 41,084.61
Step by Step Solution
- Step 1: Write the proportion equation
71,780.88 : 107,652.68 = 27,394.48 : x - Step 2: Convert to fraction form
71,780.88/107,652.68 = 27,394.48/x - Step 3: Cross multiply
71,780.88x = 107,652.68 × 27,394.48 - Step 4: Simplify right side
71,780.88x = 2,949,089,189.21 - Step 5: Solve for x
x = 2,949,089,189.21/71,780.88 - Step 6: Final answer
x = 41,084.61
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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.