Finding the Fourth Proportional to 85,135.19, 127,710.12 and 21,954.75
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Solution
The fourth proportional to 85,135.19, 127,710.12 and 21,954.75 is: 32,934.02
Step by Step Solution
- Step 1: Write the proportion equation
85,135.19 : 127,710.12 = 21,954.75 : x - Step 2: Convert to fraction form
85,135.19/127,710.12 = 21,954.75/x - Step 3: Cross multiply
85,135.19x = 127,710.12 × 21,954.75 - Step 4: Simplify right side
85,135.19x = 2,803,843,757.07 - Step 5: Solve for x
x = 2,803,843,757.07/85,135.19 - Step 6: Final answer
x = 32,934.02
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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.