Finding the Fourth Proportional to 75,350.80, 103,984.08 and 41,816.80
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Solution
The fourth proportional to 75,350.80, 103,984.08 and 41,816.80 is: 57,707.17
Step by Step Solution
- Step 1: Write the proportion equation
75,350.80 : 103,984.08 = 41,816.80 : x - Step 2: Convert to fraction form
75,350.80/103,984.08 = 41,816.80/x - Step 3: Cross multiply
75,350.80x = 103,984.08 × 41,816.80 - Step 4: Simplify right side
75,350.80x = 4,348,281,476.54 - Step 5: Solve for x
x = 4,348,281,476.54/75,350.80 - Step 6: Final answer
x = 57,707.17
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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.