Finding the Fourth Proportional to 83,128.06, 114,722.58 and 47,318.08
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Solution
The fourth proportional to 83,128.06, 114,722.58 and 47,318.08 is: 65,302.28
Step by Step Solution
- Step 1: Write the proportion equation
83,128.06 : 114,722.58 = 47,318.08 : x - Step 2: Convert to fraction form
83,128.06/114,722.58 = 47,318.08/x - Step 3: Cross multiply
83,128.06x = 114,722.58 × 47,318.08 - Step 4: Simplify right side
83,128.06x = 5,428,452,218.25 - Step 5: Solve for x
x = 5,428,452,218.25/83,128.06 - Step 6: Final answer
x = 65,302.28
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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.