Finding the Fourth Proportional to 84,407.21, 116,524.27 and 65,243.70
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Solution
The fourth proportional to 84,407.21, 116,524.27 and 65,243.70 is: 90,069.02
Step by Step Solution
- Step 1: Write the proportion equation
84,407.21 : 116,524.27 = 65,243.70 : x - Step 2: Convert to fraction form
84,407.21/116,524.27 = 65,243.70/x - Step 3: Cross multiply
84,407.21x = 116,524.27 × 65,243.70 - Step 4: Simplify right side
84,407.21x = 7,602,474,923.88 - Step 5: Solve for x
x = 7,602,474,923.88/84,407.21 - Step 6: Final answer
x = 90,069.02
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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.