Finding the Fourth Proportional to 98,524.75, 135,964.17 and 53,812.75
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Solution
The fourth proportional to 98,524.75, 135,964.17 and 53,812.75 is: 74,261.60
Step by Step Solution
- Step 1: Write the proportion equation
98,524.75 : 135,964.17 = 53,812.75 : x - Step 2: Convert to fraction form
98,524.75/135,964.17 = 53,812.75/x - Step 3: Cross multiply
98,524.75x = 135,964.17 × 53,812.75 - Step 4: Simplify right side
98,524.75x = 7,316,605,889.17 - Step 5: Solve for x
x = 7,316,605,889.17/98,524.75 - Step 6: Final answer
x = 74,261.60
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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.