Finding the Fourth Proportional to 68,400.39, 102,633.08 and 47,372.79
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Solution
The fourth proportional to 68,400.39, 102,633.08 and 47,372.79 is: 71,081.69
Step by Step Solution
- Step 1: Write the proportion equation
68,400.39 : 102,633.08 = 47,372.79 : x - Step 2: Convert to fraction form
68,400.39/102,633.08 = 47,372.79/x - Step 3: Cross multiply
68,400.39x = 102,633.08 × 47,372.79 - Step 4: Simplify right side
68,400.39x = 4,862,015,109.03 - Step 5: Solve for x
x = 4,862,015,109.03/68,400.39 - Step 6: Final answer
x = 71,081.69
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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.