Finding the Fourth Proportional to 71,247.62, 106,831.95 and 29,157.27
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Solution
The fourth proportional to 71,247.62, 106,831.95 and 29,157.27 is: 43,719.75
Step by Step Solution
- Step 1: Write the proportion equation
71,247.62 : 106,831.95 = 29,157.27 : x - Step 2: Convert to fraction form
71,247.62/106,831.95 = 29,157.27/x - Step 3: Cross multiply
71,247.62x = 106,831.95 × 29,157.27 - Step 4: Simplify right side
71,247.62x = 3,114,928,010.78 - Step 5: Solve for x
x = 3,114,928,010.78/71,247.62 - Step 6: Final answer
x = 43,719.75
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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.