Finding the Fourth Proportional to 84,148.58, 126,223.98 and 27,988.70
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Solution
The fourth proportional to 84,148.58, 126,223.98 and 27,988.70 is: 41,983.42
Step by Step Solution
- Step 1: Write the proportion equation
84,148.58 : 126,223.98 = 27,988.70 : x - Step 2: Convert to fraction form
84,148.58/126,223.98 = 27,988.70/x - Step 3: Cross multiply
84,148.58x = 126,223.98 × 27,988.70 - Step 4: Simplify right side
84,148.58x = 3,532,845,109.03 - Step 5: Solve for x
x = 3,532,845,109.03/84,148.58 - Step 6: Final answer
x = 41,983.42
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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.