Finding the Fourth Proportional to 83,714.88, 115,531.20 and 47,896.68
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Solution
The fourth proportional to 83,714.88, 115,531.20 and 47,896.68 is: 66,100.09
Step by Step Solution
- Step 1: Write the proportion equation
83,714.88 : 115,531.20 = 47,896.68 : x - Step 2: Convert to fraction form
83,714.88/115,531.20 = 47,896.68/x - Step 3: Cross multiply
83,714.88x = 115,531.20 × 47,896.68 - Step 4: Simplify right side
83,714.88x = 5,533,560,916.42 - Step 5: Solve for x
x = 5,533,560,916.42/83,714.88 - Step 6: Final answer
x = 66,100.09
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.