Finding the Fourth Proportional to 77,575.21, 116,360.49 and 21,418.75
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Solution
The fourth proportional to 77,575.21, 116,360.49 and 21,418.75 is: 32,127.48
Step by Step Solution
- Step 1: Write the proportion equation
77,575.21 : 116,360.49 = 21,418.75 : x - Step 2: Convert to fraction form
77,575.21/116,360.49 = 21,418.75/x - Step 3: Cross multiply
77,575.21x = 116,360.49 × 21,418.75 - Step 4: Simplify right side
77,575.21x = 2,492,295,873.97 - Step 5: Solve for x
x = 2,492,295,873.97/77,575.21 - Step 6: Final answer
x = 32,127.48
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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.