Finding the Fourth Proportional to 77,133.42, 115,717.50 and 27,217.08
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Solution
The fourth proportional to 77,133.42, 115,717.50 and 27,217.08 is: 40,831.75
Step by Step Solution
- Step 1: Write the proportion equation
77,133.42 : 115,717.50 = 27,217.08 : x - Step 2: Convert to fraction form
77,133.42/115,717.50 = 27,217.08/x - Step 3: Cross multiply
77,133.42x = 115,717.50 × 27,217.08 - Step 4: Simplify right side
77,133.42x = 3,149,492,454.90 - Step 5: Solve for x
x = 3,149,492,454.90/77,133.42 - Step 6: Final answer
x = 40,831.75
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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.