Finding the Fourth Proportional to 84,938.37, 117,212.07 and 47,211.81
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Solution
The fourth proportional to 84,938.37, 117,212.07 and 47,211.81 is: 65,150.70
Step by Step Solution
- Step 1: Write the proportion equation
84,938.37 : 117,212.07 = 47,211.81 : x - Step 2: Convert to fraction form
84,938.37/117,212.07 = 47,211.81/x - Step 3: Cross multiply
84,938.37x = 117,212.07 × 47,211.81 - Step 4: Simplify right side
84,938.37x = 5,533,793,978.55 - Step 5: Solve for x
x = 5,533,793,978.55/84,938.37 - Step 6: Final answer
x = 65,150.70
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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.