Finding the Fourth Proportional to 91,660.68, 126,491.34 and 51,374.44
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Solution
The fourth proportional to 91,660.68, 126,491.34 and 51,374.44 is: 70,896.51
Step by Step Solution
- Step 1: Write the proportion equation
91,660.68 : 126,491.34 = 51,374.44 : x - Step 2: Convert to fraction form
91,660.68/126,491.34 = 51,374.44/x - Step 3: Cross multiply
91,660.68x = 126,491.34 × 51,374.44 - Step 4: Simplify right side
91,660.68x = 6,498,422,312.40 - Step 5: Solve for x
x = 6,498,422,312.40/91,660.68 - Step 6: Final answer
x = 70,896.51
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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.