Finding the Fourth Proportional to 91,035.36, 136,614.96 and 55,867.68
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Solution
The fourth proportional to 91,035.36, 136,614.96 and 55,867.68 is: 83,839.52
Step by Step Solution
- Step 1: Write the proportion equation
91,035.36 : 136,614.96 = 55,867.68 : x - Step 2: Convert to fraction form
91,035.36/136,614.96 = 55,867.68/x - Step 3: Cross multiply
91,035.36x = 136,614.96 × 55,867.68 - Step 4: Simplify right side
91,035.36x = 7,632,360,868.49 - Step 5: Solve for x
x = 7,632,360,868.49/91,035.36 - Step 6: Final answer
x = 83,839.52
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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.