Finding the Fourth Proportional to 71,652.36, 107,479.26 and 27,279.48
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Solution
The fourth proportional to 71,652.36, 107,479.26 and 27,279.48 is: 40,919.49
Step by Step Solution
- Step 1: Write the proportion equation
71,652.36 : 107,479.26 = 27,279.48 : x - Step 2: Convert to fraction form
71,652.36/107,479.26 = 27,279.48/x - Step 3: Cross multiply
71,652.36x = 107,479.26 × 27,279.48 - Step 4: Simplify right side
71,652.36x = 2,931,978,323.58 - Step 5: Solve for x
x = 2,931,978,323.58/71,652.36 - Step 6: Final answer
x = 40,919.49
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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.