Finding the Fourth Proportional to 68,380.56, 102,567.12 and 18,459.96
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Solution
The fourth proportional to 68,380.56, 102,567.12 and 18,459.96 is: 27,688.94
Step by Step Solution
- Step 1: Write the proportion equation
68,380.56 : 102,567.12 = 18,459.96 : x - Step 2: Convert to fraction form
68,380.56/102,567.12 = 18,459.96/x - Step 3: Cross multiply
68,380.56x = 102,567.12 × 18,459.96 - Step 4: Simplify right side
68,380.56x = 1,893,384,932.52 - Step 5: Solve for x
x = 1,893,384,932.52/68,380.56 - Step 6: Final answer
x = 27,688.94
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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.