Finding the Fourth Proportional to 75,649.55, 113,489.35 and 25,716.23
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Solution
The fourth proportional to 75,649.55, 113,489.35 and 25,716.23 is: 38,579.46
Step by Step Solution
- Step 1: Write the proportion equation
75,649.55 : 113,489.35 = 25,716.23 : x - Step 2: Convert to fraction form
75,649.55/113,489.35 = 25,716.23/x - Step 3: Cross multiply
75,649.55x = 113,489.35 × 25,716.23 - Step 4: Simplify right side
75,649.55x = 2,918,518,804.03 - Step 5: Solve for x
x = 2,918,518,804.03/75,649.55 - Step 6: Final answer
x = 38,579.46
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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.