Finding the Fourth Proportional to 68,645.84, 102,808.85 and 66,753.92
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Solution
The fourth proportional to 68,645.84, 102,808.85 and 66,753.92 is: 99,975.37
Step by Step Solution
- Step 1: Write the proportion equation
68,645.84 : 102,808.85 = 66,753.92 : x - Step 2: Convert to fraction form
68,645.84/102,808.85 = 66,753.92/x - Step 3: Cross multiply
68,645.84x = 102,808.85 × 66,753.92 - Step 4: Simplify right side
68,645.84x = 6,862,893,671.44 - Step 5: Solve for x
x = 6,862,893,671.44/68,645.84 - Step 6: Final answer
x = 99,975.37
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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.