Finding the Fourth Proportional to 73,880.32, 110,839.68 and 21,294.08
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Solution
The fourth proportional to 73,880.32, 110,839.68 and 21,294.08 is: 31,946.65
Step by Step Solution
- Step 1: Write the proportion equation
73,880.32 : 110,839.68 = 21,294.08 : x - Step 2: Convert to fraction form
73,880.32/110,839.68 = 21,294.08/x - Step 3: Cross multiply
73,880.32x = 110,839.68 × 21,294.08 - Step 4: Simplify right side
73,880.32x = 2,360,229,013.09 - Step 5: Solve for x
x = 2,360,229,013.09/73,880.32 - Step 6: Final answer
x = 31,946.65
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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.