Finding the Fourth Proportional to 75,863.08, 104,690.99 and 42,329.08
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Solution
The fourth proportional to 75,863.08, 104,690.99 and 42,329.08 is: 58,414.09
Step by Step Solution
- Step 1: Write the proportion equation
75,863.08 : 104,690.99 = 42,329.08 : x - Step 2: Convert to fraction form
75,863.08/104,690.99 = 42,329.08/x - Step 3: Cross multiply
75,863.08x = 104,690.99 × 42,329.08 - Step 4: Simplify right side
75,863.08x = 4,431,473,079.34 - Step 5: Solve for x
x = 4,431,473,079.34/75,863.08 - Step 6: Final answer
x = 58,414.09
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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.