Finding the Fourth Proportional to 98,340.75, 135,710.24 and 53,628.75
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Solution
The fourth proportional to 98,340.75, 135,710.24 and 53,628.75 is: 74,007.68
Step by Step Solution
- Step 1: Write the proportion equation
98,340.75 : 135,710.24 = 53,628.75 : x - Step 2: Convert to fraction form
98,340.75/135,710.24 = 53,628.75/x - Step 3: Cross multiply
98,340.75x = 135,710.24 × 53,628.75 - Step 4: Simplify right side
98,340.75x = 7,277,970,265.26 - Step 5: Solve for x
x = 7,277,970,265.26/98,340.75 - Step 6: Final answer
x = 74,007.68
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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.