Finding the Fourth Proportional to 81,989.08, 122,959.84 and 34,614.68
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Solution
The fourth proportional to 81,989.08, 122,959.84 and 34,614.68 is: 51,911.98
Step by Step Solution
- Step 1: Write the proportion equation
81,989.08 : 122,959.84 = 34,614.68 : x - Step 2: Convert to fraction form
81,989.08/122,959.84 = 34,614.68/x - Step 3: Cross multiply
81,989.08x = 122,959.84 × 34,614.68 - Step 4: Simplify right side
81,989.08x = 4,256,215,514.45 - Step 5: Solve for x
x = 4,256,215,514.45/81,989.08 - Step 6: Final answer
x = 51,911.98
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.