Finding the Fourth Proportional to 68,215.95, 102,315.69 and 18,299.84
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Solution
The fourth proportional to 68,215.95, 102,315.69 and 18,299.84 is: 27,447.54
Step by Step Solution
- Step 1: Write the proportion equation
68,215.95 : 102,315.69 = 18,299.84 : x - Step 2: Convert to fraction form
68,215.95/102,315.69 = 18,299.84/x - Step 3: Cross multiply
68,215.95x = 102,315.69 × 18,299.84 - Step 4: Simplify right side
68,215.95x = 1,872,360,244.91 - Step 5: Solve for x
x = 1,872,360,244.91/68,215.95 - Step 6: Final answer
x = 27,447.54
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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.