Finding the Fourth Proportional to 71,863.65, 107,811.68 and 21,946.05
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Solution
The fourth proportional to 71,863.65, 107,811.68 and 21,946.05 is: 32,924.02
Step by Step Solution
- Step 1: Write the proportion equation
71,863.65 : 107,811.68 = 21,946.05 : x - Step 2: Convert to fraction form
71,863.65/107,811.68 = 21,946.05/x - Step 3: Cross multiply
71,863.65x = 107,811.68 × 21,946.05 - Step 4: Simplify right side
71,863.65x = 2,366,040,410.13 - Step 5: Solve for x
x = 2,366,040,410.13/71,863.65 - Step 6: Final answer
x = 32,924.02
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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.