Finding the Fourth Proportional to 68,611.30, 102,916.95 and 19,363.30
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Solution
The fourth proportional to 68,611.30, 102,916.95 and 19,363.30 is: 29,044.95
Step by Step Solution
- Step 1: Write the proportion equation
68,611.30 : 102,916.95 = 19,363.30 : x - Step 2: Convert to fraction form
68,611.30/102,916.95 = 19,363.30/x - Step 3: Cross multiply
68,611.30x = 102,916.95 × 19,363.30 - Step 4: Simplify right side
68,611.30x = 1,992,811,777.94 - Step 5: Solve for x
x = 1,992,811,777.94/68,611.30 - Step 6: Final answer
x = 29,044.95
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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.