Finding the Fourth Proportional to 91,283.68, 136,916.16 and 24,721.12
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Solution
The fourth proportional to 91,283.68, 136,916.16 and 24,721.12 is: 37,079.15
Step by Step Solution
- Step 1: Write the proportion equation
91,283.68 : 136,916.16 = 24,721.12 : x - Step 2: Convert to fraction form
91,283.68/136,916.16 = 24,721.12/x - Step 3: Cross multiply
91,283.68x = 136,916.16 × 24,721.12 - Step 4: Simplify right side
91,283.68x = 3,384,720,821.30 - Step 5: Solve for x
x = 3,384,720,821.30/91,283.68 - Step 6: Final answer
x = 37,079.15
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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.