Finding the Fourth Proportional to 68,677.68, 102,885.68 and 39,115.92
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Solution
The fourth proportional to 68,677.68, 102,885.68 and 39,115.92 is: 58,599.36
Step by Step Solution
- Step 1: Write the proportion equation
68,677.68 : 102,885.68 = 39,115.92 : x - Step 2: Convert to fraction form
68,677.68/102,885.68 = 39,115.92/x - Step 3: Cross multiply
68,677.68x = 102,885.68 × 39,115.92 - Step 4: Simplify right side
68,677.68x = 4,024,468,028.03 - Step 5: Solve for x
x = 4,024,468,028.03/68,677.68 - Step 6: Final answer
x = 58,599.36
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1.5x scale
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.