Finding the Fourth Proportional to 77,691.42, 116,520.27 and 27,774.99
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Solution
The fourth proportional to 77,691.42, 116,520.27 and 27,774.99 is: 41,656.46
Step by Step Solution
- Step 1: Write the proportion equation
77,691.42 : 116,520.27 = 27,774.99 : x - Step 2: Convert to fraction form
77,691.42/116,520.27 = 27,774.99/x - Step 3: Cross multiply
77,691.42x = 116,520.27 × 27,774.99 - Step 4: Simplify right side
77,691.42x = 3,236,349,334.05 - Step 5: Solve for x
x = 3,236,349,334.05/77,691.42 - Step 6: Final answer
x = 41,656.46
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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.