Finding the Fourth Proportional to 80,781.09, 121,189.11 and 24,619.71
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Solution
The fourth proportional to 80,781.09, 121,189.11 and 24,619.71 is: 36,934.89
Step by Step Solution
- Step 1: Write the proportion equation
80,781.09 : 121,189.11 = 24,619.71 : x - Step 2: Convert to fraction form
80,781.09/121,189.11 = 24,619.71/x - Step 3: Cross multiply
80,781.09x = 121,189.11 × 24,619.71 - Step 4: Simplify right side
80,781.09x = 2,983,640,743.36 - Step 5: Solve for x
x = 2,983,640,743.36/80,781.09 - Step 6: Final answer
x = 36,934.89
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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.