Finding the Fourth Proportional to 77,861.26, 107,336.56 and 55,466.38
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Solution
The fourth proportional to 77,861.26, 107,336.56 and 55,466.38 is: 76,463.83
Step by Step Solution
- Step 1: Write the proportion equation
77,861.26 : 107,336.56 = 55,466.38 : x - Step 2: Convert to fraction form
77,861.26/107,336.56 = 55,466.38/x - Step 3: Cross multiply
77,861.26x = 107,336.56 × 55,466.38 - Step 4: Simplify right side
77,861.26x = 5,953,569,610.84 - Step 5: Solve for x
x = 5,953,569,610.84/77,861.26 - Step 6: Final answer
x = 76,463.83
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1.5x scale
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.