Finding the Fourth Proportional to 85,583.26, 128,377.80 and 29,422.88
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Solution
The fourth proportional to 85,583.26, 128,377.80 and 29,422.88 is: 44,135.32
Step by Step Solution
- Step 1: Write the proportion equation
85,583.26 : 128,377.80 = 29,422.88 : x - Step 2: Convert to fraction form
85,583.26/128,377.80 = 29,422.88/x - Step 3: Cross multiply
85,583.26x = 128,377.80 × 29,422.88 - Step 4: Simplify right side
85,583.26x = 3,777,244,604.06 - Step 5: Solve for x
x = 3,777,244,604.06/85,583.26 - Step 6: Final answer
x = 44,135.32
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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.