Finding the Fourth Proportional to 83,748.24, 125,655.84 and 31,201.92
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Solution
The fourth proportional to 83,748.24, 125,655.84 and 31,201.92 is: 46,815.35
Step by Step Solution
- Step 1: Write the proportion equation
83,748.24 : 125,655.84 = 31,201.92 : x - Step 2: Convert to fraction form
83,748.24/125,655.84 = 31,201.92/x - Step 3: Cross multiply
83,748.24x = 125,655.84 × 31,201.92 - Step 4: Simplify right side
83,748.24x = 3,920,703,467.21 - Step 5: Solve for x
x = 3,920,703,467.21/83,748.24 - Step 6: Final answer
x = 46,815.35
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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.