Finding the Fourth Proportional to 90,763.99, 125,244.71 and 50,471.25
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Solution
The fourth proportional to 90,763.99, 125,244.71 and 50,471.25 is: 69,644.99
Step by Step Solution
- Step 1: Write the proportion equation
90,763.99 : 125,244.71 = 50,471.25 : x - Step 2: Convert to fraction form
90,763.99/125,244.71 = 50,471.25/x - Step 3: Cross multiply
90,763.99x = 125,244.71 × 50,471.25 - Step 4: Simplify right side
90,763.99x = 6,321,256,443.36 - Step 5: Solve for x
x = 6,321,256,443.36/90,763.99 - Step 6: Final answer
x = 69,644.99
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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.