Finding the Fourth Proportional to 71,630.13, 107,466.66 and 28,913.57
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Solution
The fourth proportional to 71,630.13, 107,466.66 and 28,913.57 is: 43,379.01
Step by Step Solution
- Step 1: Write the proportion equation
71,630.13 : 107,466.66 = 28,913.57 : x - Step 2: Convert to fraction form
71,630.13/107,466.66 = 28,913.57/x - Step 3: Cross multiply
71,630.13x = 107,466.66 × 28,913.57 - Step 4: Simplify right side
71,630.13x = 3,107,244,259.24 - Step 5: Solve for x
x = 3,107,244,259.24/71,630.13 - Step 6: Final answer
x = 43,379.01
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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.