Finding the Fourth Proportional to 98,433.50, 147,721.86 and 39,286.08
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Solution
The fourth proportional to 98,433.50, 147,721.86 and 39,286.08 is: 58,957.70
Step by Step Solution
- Step 1: Write the proportion equation
98,433.50 : 147,721.86 = 39,286.08 : x - Step 2: Convert to fraction form
98,433.50/147,721.86 = 39,286.08/x - Step 3: Cross multiply
98,433.50x = 147,721.86 × 39,286.08 - Step 4: Simplify right side
98,433.50x = 5,803,412,809.71 - Step 5: Solve for x
x = 5,803,412,809.71/98,433.50 - Step 6: Final answer
x = 58,957.70
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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.