Finding the Fourth Proportional to 98,727.91, 136,244.12 and 53,405.84
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Solution
The fourth proportional to 98,727.91, 136,244.12 and 53,405.84 is: 73,699.85
Step by Step Solution
- Step 1: Write the proportion equation
98,727.91 : 136,244.12 = 53,405.84 : x - Step 2: Convert to fraction form
98,727.91/136,244.12 = 53,405.84/x - Step 3: Cross multiply
98,727.91x = 136,244.12 × 53,405.84 - Step 4: Simplify right side
98,727.91x = 7,276,231,673.66 - Step 5: Solve for x
x = 7,276,231,673.66/98,727.91 - Step 6: Final answer
x = 73,699.85
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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.