Finding the Fourth Proportional to 71,788.24, 107,673.88 and 19,201.80
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Solution
The fourth proportional to 71,788.24, 107,673.88 and 19,201.80 is: 28,800.43
Step by Step Solution
- Step 1: Write the proportion equation
71,788.24 : 107,673.88 = 19,201.80 : x - Step 2: Convert to fraction form
71,788.24/107,673.88 = 19,201.80/x - Step 3: Cross multiply
71,788.24x = 107,673.88 × 19,201.80 - Step 4: Simplify right side
71,788.24x = 2,067,532,308.98 - Step 5: Solve for x
x = 2,067,532,308.98/71,788.24 - Step 6: Final answer
x = 28,800.43
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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.