Finding the Fourth Proportional to 77,074.56, 106,349.28 and 43,072.18
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Solution
The fourth proportional to 77,074.56, 106,349.28 and 43,072.18 is: 59,432.00
Step by Step Solution
- Step 1: Write the proportion equation
77,074.56 : 106,349.28 = 43,072.18 : x - Step 2: Convert to fraction form
77,074.56/106,349.28 = 43,072.18/x - Step 3: Cross multiply
77,074.56x = 106,349.28 × 43,072.18 - Step 4: Simplify right side
77,074.56x = 4,580,694,906.96 - Step 5: Solve for x
x = 4,580,694,906.96/77,074.56 - Step 6: Final answer
x = 59,432.00
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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.