Finding the Fourth Proportional to 98,003.26, 135,240.51 and 57,718.70
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Solution
The fourth proportional to 98,003.26, 135,240.51 and 57,718.70 is: 79,649.46
Step by Step Solution
- Step 1: Write the proportion equation
98,003.26 : 135,240.51 = 57,718.70 : x - Step 2: Convert to fraction form
98,003.26/135,240.51 = 57,718.70/x - Step 3: Cross multiply
98,003.26x = 135,240.51 × 57,718.70 - Step 4: Simplify right side
98,003.26x = 7,805,906,424.54 - Step 5: Solve for x
x = 7,805,906,424.54/98,003.26 - Step 6: Final answer
x = 79,649.46
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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.