Finding the Fourth Proportional to 85,579.08, 128,383.92 and 29,404.68
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Solution
The fourth proportional to 85,579.08, 128,383.92 and 29,404.68 is: 44,112.28
Step by Step Solution
- Step 1: Write the proportion equation
85,579.08 : 128,383.92 = 29,404.68 : x - Step 2: Convert to fraction form
85,579.08/128,383.92 = 29,404.68/x - Step 3: Cross multiply
85,579.08x = 128,383.92 × 29,404.68 - Step 4: Simplify right side
85,579.08x = 3,775,088,084.75 - Step 5: Solve for x
x = 3,775,088,084.75/85,579.08 - Step 6: Final answer
x = 44,112.28
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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.