Finding the Fourth Proportional to 66,909.42, 100,368.99 and 22,536.18
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Solution
The fourth proportional to 66,909.42, 100,368.99 and 22,536.18 is: 33,805.91
Step by Step Solution
- Step 1: Write the proportion equation
66,909.42 : 100,368.99 = 22,536.18 : x - Step 2: Convert to fraction form
66,909.42/100,368.99 = 22,536.18/x - Step 3: Cross multiply
66,909.42x = 100,368.99 × 22,536.18 - Step 4: Simplify right side
66,909.42x = 2,261,933,625.06 - Step 5: Solve for x
x = 2,261,933,625.06/66,909.42 - Step 6: Final answer
x = 33,805.91
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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.