Finding the Fourth Proportional to 77,372.68, 106,774.62 and 43,838.68
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Solution
The fourth proportional to 77,372.68, 106,774.62 and 43,838.68 is: 60,497.56
Step by Step Solution
- Step 1: Write the proportion equation
77,372.68 : 106,774.62 = 43,838.68 : x - Step 2: Convert to fraction form
77,372.68/106,774.62 = 43,838.68/x - Step 3: Cross multiply
77,372.68x = 106,774.62 × 43,838.68 - Step 4: Simplify right side
77,372.68x = 4,680,858,398.30 - Step 5: Solve for x
x = 4,680,858,398.30/77,372.68 - Step 6: Final answer
x = 60,497.56
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.