Finding the Fourth Proportional to 75,243.13, 112,785.12 and 27,827.75
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Solution
The fourth proportional to 75,243.13, 112,785.12 and 27,827.75 is: 41,712.20
Step by Step Solution
- Step 1: Write the proportion equation
75,243.13 : 112,785.12 = 27,827.75 : x - Step 2: Convert to fraction form
75,243.13/112,785.12 = 27,827.75/x - Step 3: Cross multiply
75,243.13x = 112,785.12 × 27,827.75 - Step 4: Simplify right side
75,243.13x = 3,138,556,405.04 - Step 5: Solve for x
x = 3,138,556,405.04/75,243.13 - Step 6: Final answer
x = 41,712.20
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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.