Finding the Fourth Proportional to 71,615.80, 107,459.34 and 54,192.52
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Solution
The fourth proportional to 71,615.80, 107,459.34 and 54,192.52 is: 81,315.75
Step by Step Solution
- Step 1: Write the proportion equation
71,615.80 : 107,459.34 = 54,192.52 : x - Step 2: Convert to fraction form
71,615.80/107,459.34 = 54,192.52/x - Step 3: Cross multiply
71,615.80x = 107,459.34 × 54,192.52 - Step 4: Simplify right side
71,615.80x = 5,823,492,432.14 - Step 5: Solve for x
x = 5,823,492,432.14/71,615.80 - Step 6: Final answer
x = 81,315.75
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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.