Finding the Fourth Proportional to 68,744.80, 103,117.20 and 27,191.80
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Solution
The fourth proportional to 68,744.80, 103,117.20 and 27,191.80 is: 40,787.70
Step by Step Solution
- Step 1: Write the proportion equation
68,744.80 : 103,117.20 = 27,191.80 : x - Step 2: Convert to fraction form
68,744.80/103,117.20 = 27,191.80/x - Step 3: Cross multiply
68,744.80x = 103,117.20 × 27,191.80 - Step 4: Simplify right side
68,744.80x = 2,803,942,278.96 - Step 5: Solve for x
x = 2,803,942,278.96/68,744.80 - Step 6: Final answer
x = 40,787.70
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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.