Finding the Fourth Proportional to 84,153.71, 126,130.16 and 39,114.21
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Solution
The fourth proportional to 84,153.71, 126,130.16 and 39,114.21 is: 58,624.65
Step by Step Solution
- Step 1: Write the proportion equation
84,153.71 : 126,130.16 = 39,114.21 : x - Step 2: Convert to fraction form
84,153.71/126,130.16 = 39,114.21/x - Step 3: Cross multiply
84,153.71x = 126,130.16 × 39,114.21 - Step 4: Simplify right side
84,153.71x = 4,933,481,445.40 - Step 5: Solve for x
x = 4,933,481,445.40/84,153.71 - Step 6: Final answer
x = 58,624.65
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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.