Finding the Fourth Proportional to 79,863.19, 119,868.56 and 40,447.98
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Solution
The fourth proportional to 79,863.19, 119,868.56 and 40,447.98 is: 60,709.33
Step by Step Solution
- Step 1: Write the proportion equation
79,863.19 : 119,868.56 = 40,447.98 : x - Step 2: Convert to fraction form
79,863.19/119,868.56 = 40,447.98/x - Step 3: Cross multiply
79,863.19x = 119,868.56 × 40,447.98 - Step 4: Simplify right side
79,863.19x = 4,848,441,117.51 - Step 5: Solve for x
x = 4,848,441,117.51/79,863.19 - Step 6: Final answer
x = 60,709.33
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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.