Finding the Fourth Proportional to 71,882.35, 107,830.00 and 19,291.48
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Solution
The fourth proportional to 71,882.35, 107,830.00 and 19,291.48 is: 28,938.96
Step by Step Solution
- Step 1: Write the proportion equation
71,882.35 : 107,830.00 = 19,291.48 : x - Step 2: Convert to fraction form
71,882.35/107,830.00 = 19,291.48/x - Step 3: Cross multiply
71,882.35x = 107,830.00 × 19,291.48 - Step 4: Simplify right side
71,882.35x = 2,080,200,042.94 - Step 5: Solve for x
x = 2,080,200,042.94/71,882.35 - Step 6: Final answer
x = 28,938.96
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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.