Finding the Fourth Proportional to 68,611.07, 102,916.61 and 19,363.07
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Solution
The fourth proportional to 68,611.07, 102,916.61 and 19,363.07 is: 29,044.61
Step by Step Solution
- Step 1: Write the proportion equation
68,611.07 : 102,916.61 = 19,363.07 : x - Step 2: Convert to fraction form
68,611.07/102,916.61 = 19,363.07/x - Step 3: Cross multiply
68,611.07x = 102,916.61 × 19,363.07 - Step 4: Simplify right side
68,611.07x = 1,992,781,426.78 - Step 5: Solve for x
x = 1,992,781,426.78/68,611.07 - Step 6: Final answer
x = 29,044.61
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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.