Finding the Fourth Proportional to 81,649.26, 122,430.15 and 37,252.08
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Solution
The fourth proportional to 81,649.26, 122,430.15 and 37,252.08 is: 55,858.16
Step by Step Solution
- Step 1: Write the proportion equation
81,649.26 : 122,430.15 = 37,252.08 : x - Step 2: Convert to fraction form
81,649.26/122,430.15 = 37,252.08/x - Step 3: Cross multiply
81,649.26x = 122,430.15 × 37,252.08 - Step 4: Simplify right side
81,649.26x = 4,560,777,742.21 - Step 5: Solve for x
x = 4,560,777,742.21/81,649.26 - Step 6: Final answer
x = 55,858.16
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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.