Finding the Fourth Proportional to 76,995.51, 106,250.81 and 48,330.56
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Solution
The fourth proportional to 76,995.51, 106,250.81 and 48,330.56 is: 66,694.28
Step by Step Solution
- Step 1: Write the proportion equation
76,995.51 : 106,250.81 = 48,330.56 : x - Step 2: Convert to fraction form
76,995.51/106,250.81 = 48,330.56/x - Step 3: Cross multiply
76,995.51x = 106,250.81 × 48,330.56 - Step 4: Simplify right side
76,995.51x = 5,135,160,374.85 - Step 5: Solve for x
x = 5,135,160,374.85/76,995.51 - Step 6: Final answer
x = 66,694.28
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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.