Finding the Fourth Proportional to 91,937.22, 137,927.97 and 31,956.99
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Solution
The fourth proportional to 91,937.22, 137,927.97 and 31,956.99 is: 47,943.18
Step by Step Solution
- Step 1: Write the proportion equation
91,937.22 : 137,927.97 = 31,956.99 : x - Step 2: Convert to fraction form
91,937.22/137,927.97 = 31,956.99/x - Step 3: Cross multiply
91,937.22x = 137,927.97 × 31,956.99 - Step 4: Simplify right side
91,937.22x = 4,407,762,758.01 - Step 5: Solve for x
x = 4,407,762,758.01/91,937.22 - Step 6: Final answer
x = 47,943.18
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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.