Finding the Fourth Proportional to 68,670.80, 102,935.18 and 39,024.80
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Solution
The fourth proportional to 68,670.80, 102,935.18 and 39,024.80 is: 58,496.84
Step by Step Solution
- Step 1: Write the proportion equation
68,670.80 : 102,935.18 = 39,024.80 : x - Step 2: Convert to fraction form
68,670.80/102,935.18 = 39,024.80/x - Step 3: Cross multiply
68,670.80x = 102,935.18 × 39,024.80 - Step 4: Simplify right side
68,670.80x = 4,017,024,812.46 - Step 5: Solve for x
x = 4,017,024,812.46/68,670.80 - Step 6: Final answer
x = 58,496.84
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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.