Finding the Fourth Proportional to 85,112.79, 127,549.68 and 67,264.98
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Solution
The fourth proportional to 85,112.79, 127,549.68 and 67,264.98 is: 100,803.02
Step by Step Solution
- Step 1: Write the proportion equation
85,112.79 : 127,549.68 = 67,264.98 : x - Step 2: Convert to fraction form
85,112.79/127,549.68 = 67,264.98/x - Step 3: Cross multiply
85,112.79x = 127,549.68 × 67,264.98 - Step 4: Simplify right side
85,112.79x = 8,579,626,674.21 - Step 5: Solve for x
x = 8,579,626,674.21/85,112.79 - Step 6: Final answer
x = 100,803.02
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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.