Finding the Fourth Proportional to 92,912.66, 128,258.70 and 62,738.84
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Solution
The fourth proportional to 92,912.66, 128,258.70 and 62,738.84 is: 86,606.09
Step by Step Solution
- Step 1: Write the proportion equation
92,912.66 : 128,258.70 = 62,738.84 : x - Step 2: Convert to fraction form
92,912.66/128,258.70 = 62,738.84/x - Step 3: Cross multiply
92,912.66x = 128,258.70 × 62,738.84 - Step 4: Simplify right side
92,912.66x = 8,046,802,057.91 - Step 5: Solve for x
x = 8,046,802,057.91/92,912.66 - Step 6: Final answer
x = 86,606.09
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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.