Finding the Fourth Proportional to 79,213.92, 118,840.68 and 55,885.92
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Solution
The fourth proportional to 79,213.92, 118,840.68 and 55,885.92 is: 83,842.85
Step by Step Solution
- Step 1: Write the proportion equation
79,213.92 : 118,840.68 = 55,885.92 : x - Step 2: Convert to fraction form
79,213.92/118,840.68 = 55,885.92/x - Step 3: Cross multiply
79,213.92x = 118,840.68 × 55,885.92 - Step 4: Simplify right side
79,213.92x = 6,641,520,735.23 - Step 5: Solve for x
x = 6,641,520,735.23/79,213.92 - Step 6: Final answer
x = 83,842.85
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1.5x scale
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.