Finding the Fourth Proportional to 68,102.60, 102,230.70 and 40,416.20
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Solution
The fourth proportional to 68,102.60, 102,230.70 and 40,416.20 is: 60,669.88
Step by Step Solution
- Step 1: Write the proportion equation
68,102.60 : 102,230.70 = 40,416.20 : x - Step 2: Convert to fraction form
68,102.60/102,230.70 = 40,416.20/x - Step 3: Cross multiply
68,102.60x = 102,230.70 × 40,416.20 - Step 4: Simplify right side
68,102.60x = 4,131,776,417.34 - Step 5: Solve for x
x = 4,131,776,417.34/68,102.60 - Step 6: Final answer
x = 60,669.88
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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.