Finding the Fourth Proportional to 75,705.08, 113,575.23 and 25,785.63
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Solution
The fourth proportional to 75,705.08, 113,575.23 and 25,785.63 is: 38,684.45
Step by Step Solution
- Step 1: Write the proportion equation
75,705.08 : 113,575.23 = 25,785.63 : x - Step 2: Convert to fraction form
75,705.08/113,575.23 = 25,785.63/x - Step 3: Cross multiply
75,705.08x = 113,575.23 × 25,785.63 - Step 4: Simplify right side
75,705.08x = 2,928,608,857.94 - Step 5: Solve for x
x = 2,928,608,857.94/75,705.08 - Step 6: Final answer
x = 38,684.45
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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.