Finding the Fourth Proportional to 81,536.68, 122,291.90 and 22,358.62
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Solution
The fourth proportional to 81,536.68, 122,291.90 and 22,358.62 is: 33,534.33
Step by Step Solution
- Step 1: Write the proportion equation
81,536.68 : 122,291.90 = 22,358.62 : x - Step 2: Convert to fraction form
81,536.68/122,291.90 = 22,358.62/x - Step 3: Cross multiply
81,536.68x = 122,291.90 × 22,358.62 - Step 4: Simplify right side
81,536.68x = 2,734,278,121.18 - Step 5: Solve for x
x = 2,734,278,121.18/81,536.68 - Step 6: Final answer
x = 33,534.33
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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.