Finding the Fourth Proportional to 71,793.59, 107,690.35 and 19,201.70
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Solution
The fourth proportional to 71,793.59, 107,690.35 and 19,201.70 is: 28,802.55
Step by Step Solution
- Step 1: Write the proportion equation
71,793.59 : 107,690.35 = 19,201.70 : x - Step 2: Convert to fraction form
71,793.59/107,690.35 = 19,201.70/x - Step 3: Cross multiply
71,793.59x = 107,690.35 × 19,201.70 - Step 4: Simplify right side
71,793.59x = 2,067,838,014.82 - Step 5: Solve for x
x = 2,067,838,014.82/71,793.59 - Step 6: Final answer
x = 28,802.55
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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.