Finding the Fourth Proportional to 71,712.95, 107,536.01 and 27,311.99
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Solution
The fourth proportional to 71,712.95, 107,536.01 and 27,311.99 is: 40,955.25
Step by Step Solution
- Step 1: Write the proportion equation
71,712.95 : 107,536.01 = 27,311.99 : x - Step 2: Convert to fraction form
71,712.95/107,536.01 = 27,311.99/x - Step 3: Cross multiply
71,712.95x = 107,536.01 × 27,311.99 - Step 4: Simplify right side
71,712.95x = 2,937,021,755.52 - Step 5: Solve for x
x = 2,937,021,755.52/71,712.95 - Step 6: Final answer
x = 40,955.25
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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.