Finding the Fourth Proportional to 68,476.95, 102,707.28 and 18,553.95
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Solution
The fourth proportional to 68,476.95, 102,707.28 and 18,553.95 is: 27,828.72
Step by Step Solution
- Step 1: Write the proportion equation
68,476.95 : 102,707.28 = 18,553.95 : x - Step 2: Convert to fraction form
68,476.95/102,707.28 = 18,553.95/x - Step 3: Cross multiply
68,476.95x = 102,707.28 × 18,553.95 - Step 4: Simplify right side
68,476.95x = 1,905,625,737.76 - Step 5: Solve for x
x = 1,905,625,737.76/68,476.95 - Step 6: Final answer
x = 27,828.72
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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.