Finding the Fourth Proportional to 81,368.64, 121,586.48 and 62,027.44
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Solution
The fourth proportional to 81,368.64, 121,586.48 and 62,027.44 is: 92,685.56
Step by Step Solution
- Step 1: Write the proportion equation
81,368.64 : 121,586.48 = 62,027.44 : x - Step 2: Convert to fraction form
81,368.64/121,586.48 = 62,027.44/x - Step 3: Cross multiply
81,368.64x = 121,586.48 × 62,027.44 - Step 4: Simplify right side
81,368.64x = 7,541,698,093.01 - Step 5: Solve for x
x = 7,541,698,093.01/81,368.64 - Step 6: Final answer
x = 92,685.56
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.