Finding the Fourth Proportional to 102,883.21, 141,984.34 and 57,558.49
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Solution
The fourth proportional to 102,883.21, 141,984.34 and 57,558.49 is: 79,433.80
Step by Step Solution
- Step 1: Write the proportion equation
102,883.21 : 141,984.34 = 57,558.49 : x - Step 2: Convert to fraction form
102,883.21/141,984.34 = 57,558.49/x - Step 3: Cross multiply
102,883.21x = 141,984.34 × 57,558.49 - Step 4: Simplify right side
102,883.21x = 8,172,403,926.25 - Step 5: Solve for x
x = 8,172,403,926.25/102,883.21 - Step 6: Final answer
x = 79,433.80
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.