Finding the Fourth Proportional to 84,080.76, 115,965.79 and 53,868.88
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Solution
The fourth proportional to 84,080.76, 115,965.79 and 53,868.88 is: 74,296.99
Step by Step Solution
- Step 1: Write the proportion equation
84,080.76 : 115,965.79 = 53,868.88 : x - Step 2: Convert to fraction form
84,080.76/115,965.79 = 53,868.88/x - Step 3: Cross multiply
84,080.76x = 115,965.79 × 53,868.88 - Step 4: Simplify right side
84,080.76x = 6,246,947,225.62 - Step 5: Solve for x
x = 6,246,947,225.62/84,080.76 - Step 6: Final answer
x = 74,296.99
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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.