Finding the Fourth Proportional to 84,159.84, 126,212.19 and 27,984.47
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Solution
The fourth proportional to 84,159.84, 126,212.19 and 27,984.47 is: 41,967.53
Step by Step Solution
- Step 1: Write the proportion equation
84,159.84 : 126,212.19 = 27,984.47 : x - Step 2: Convert to fraction form
84,159.84/126,212.19 = 27,984.47/x - Step 3: Cross multiply
84,159.84x = 126,212.19 × 27,984.47 - Step 4: Simplify right side
84,159.84x = 3,531,980,613.63 - Step 5: Solve for x
x = 3,531,980,613.63/84,159.84 - Step 6: Final answer
x = 41,967.53
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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.