Finding the Fourth Proportional to 98,609.99, 136,091.31 and 58,336.70
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Solution
The fourth proportional to 98,609.99, 136,091.31 and 58,336.70 is: 80,510.28
Step by Step Solution
- Step 1: Write the proportion equation
98,609.99 : 136,091.31 = 58,336.70 : x - Step 2: Convert to fraction form
98,609.99/136,091.31 = 58,336.70/x - Step 3: Cross multiply
98,609.99x = 136,091.31 × 58,336.70 - Step 4: Simplify right side
98,609.99x = 7,939,117,924.08 - Step 5: Solve for x
x = 7,939,117,924.08/98,609.99 - Step 6: Final answer
x = 80,510.28
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.