Finding the Fourth Proportional to 75,129.22, 112,750.95 and 27,789.09
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Solution
The fourth proportional to 75,129.22, 112,750.95 and 27,789.09 is: 41,704.77
Step by Step Solution
- Step 1: Write the proportion equation
75,129.22 : 112,750.95 = 27,789.09 : x - Step 2: Convert to fraction form
75,129.22/112,750.95 = 27,789.09/x - Step 3: Cross multiply
75,129.22x = 112,750.95 × 27,789.09 - Step 4: Simplify right side
75,129.22x = 3,133,246,612.75 - Step 5: Solve for x
x = 3,133,246,612.75/75,129.22 - Step 6: Final answer
x = 41,704.77
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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.