Finding the Fourth Proportional to 75,515.25, 113,202.09 and 25,560.39
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Solution
The fourth proportional to 75,515.25, 113,202.09 and 25,560.39 is: 38,316.63
Step by Step Solution
- Step 1: Write the proportion equation
75,515.25 : 113,202.09 = 25,560.39 : x - Step 2: Convert to fraction form
75,515.25/113,202.09 = 25,560.39/x - Step 3: Cross multiply
75,515.25x = 113,202.09 × 25,560.39 - Step 4: Simplify right side
75,515.25x = 2,893,489,569.22 - Step 5: Solve for x
x = 2,893,489,569.22/75,515.25 - Step 6: Final answer
x = 38,316.63
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.