Finding the Fourth Proportional to 68,530.62, 102,743.84 and 47,414.53
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Solution
The fourth proportional to 68,530.62, 102,743.84 and 47,414.53 is: 71,085.76
Step by Step Solution
- Step 1: Write the proportion equation
68,530.62 : 102,743.84 = 47,414.53 : x - Step 2: Convert to fraction form
68,530.62/102,743.84 = 47,414.53/x - Step 3: Cross multiply
68,530.62x = 102,743.84 × 47,414.53 - Step 4: Simplify right side
68,530.62x = 4,871,551,130.96 - Step 5: Solve for x
x = 4,871,551,130.96/68,530.62 - Step 6: Final answer
x = 71,085.76
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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.