Finding the Fourth Proportional to 98,841.12, 136,400.99 and 53,519.66
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Solution
The fourth proportional to 98,841.12, 136,400.99 and 53,519.66 is: 73,857.26
Step by Step Solution
- Step 1: Write the proportion equation
98,841.12 : 136,400.99 = 53,519.66 : x - Step 2: Convert to fraction form
98,841.12/136,400.99 = 53,519.66/x - Step 3: Cross multiply
98,841.12x = 136,400.99 × 53,519.66 - Step 4: Simplify right side
98,841.12x = 7,300,134,608.46 - Step 5: Solve for x
x = 7,300,134,608.46/98,841.12 - Step 6: Final answer
x = 73,857.26
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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.