Finding the Fourth Proportional to 84,845.80, 127,268.70 and 77,069.80
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Solution
The fourth proportional to 84,845.80, 127,268.70 and 77,069.80 is: 115,604.70
Step by Step Solution
- Step 1: Write the proportion equation
84,845.80 : 127,268.70 = 77,069.80 : x - Step 2: Convert to fraction form
84,845.80/127,268.70 = 77,069.80/x - Step 3: Cross multiply
84,845.80x = 127,268.70 × 77,069.80 - Step 4: Simplify right side
84,845.80x = 9,808,573,255.26 - Step 5: Solve for x
x = 9,808,573,255.26/84,845.80 - Step 6: Final answer
x = 115,604.70
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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.