Finding the Fourth Proportional to 68,378.84, 102,231.08 and 57,965.07
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Solution
The fourth proportional to 68,378.84, 102,231.08 and 57,965.07 is: 86,661.78
Step by Step Solution
- Step 1: Write the proportion equation
68,378.84 : 102,231.08 = 57,965.07 : x - Step 2: Convert to fraction form
68,378.84/102,231.08 = 57,965.07/x - Step 3: Cross multiply
68,378.84x = 102,231.08 × 57,965.07 - Step 4: Simplify right side
68,378.84x = 5,925,831,708.38 - Step 5: Solve for x
x = 5,925,831,708.38/68,378.84 - Step 6: Final answer
x = 86,661.78
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.