Finding the Fourth Proportional to 77,131.62, 115,690.14 and 24,531.84
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Solution
The fourth proportional to 77,131.62, 115,690.14 and 24,531.84 is: 36,795.44
Step by Step Solution
- Step 1: Write the proportion equation
77,131.62 : 115,690.14 = 24,531.84 : x - Step 2: Convert to fraction form
77,131.62/115,690.14 = 24,531.84/x - Step 3: Cross multiply
77,131.62x = 115,690.14 × 24,531.84 - Step 4: Simplify right side
77,131.62x = 2,838,092,004.06 - Step 5: Solve for x
x = 2,838,092,004.06/77,131.62 - Step 6: Final answer
x = 36,795.44
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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.