Finding the Fourth Proportional to 74,035.68, 102,168.36 and 42,204.48
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Solution
The fourth proportional to 74,035.68, 102,168.36 and 42,204.48 is: 58,241.68
Step by Step Solution
- Step 1: Write the proportion equation
74,035.68 : 102,168.36 = 42,204.48 : x - Step 2: Convert to fraction form
74,035.68/102,168.36 = 42,204.48/x - Step 3: Cross multiply
74,035.68x = 102,168.36 × 42,204.48 - Step 4: Simplify right side
74,035.68x = 4,311,962,506.25 - Step 5: Solve for x
x = 4,311,962,506.25/74,035.68 - Step 6: Final answer
x = 58,241.68
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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.