Finding the Fourth Proportional to 75,631.88, 104,377.14 and 43,809.80
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Solution
The fourth proportional to 75,631.88, 104,377.14 and 43,809.80 is: 60,460.50
Step by Step Solution
- Step 1: Write the proportion equation
75,631.88 : 104,377.14 = 43,809.80 : x - Step 2: Convert to fraction form
75,631.88/104,377.14 = 43,809.80/x - Step 3: Cross multiply
75,631.88x = 104,377.14 × 43,809.80 - Step 4: Simplify right side
75,631.88x = 4,572,741,627.97 - Step 5: Solve for x
x = 4,572,741,627.97/75,631.88 - Step 6: Final answer
x = 60,460.50
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.