Finding the Fourth Proportional to 75,708.24, 113,575.68 and 31,310.10
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Solution
The fourth proportional to 75,708.24, 113,575.68 and 31,310.10 is: 46,970.66
Step by Step Solution
- Step 1: Write the proportion equation
75,708.24 : 113,575.68 = 31,310.10 : x - Step 2: Convert to fraction form
75,708.24/113,575.68 = 31,310.10/x - Step 3: Cross multiply
75,708.24x = 113,575.68 × 31,310.10 - Step 4: Simplify right side
75,708.24x = 3,556,065,898.37 - Step 5: Solve for x
x = 3,556,065,898.37/75,708.24 - Step 6: Final answer
x = 46,970.66
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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.