Finding the Fourth Proportional to 75,587.12, 113,378.16 and 40,595.12
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Solution
The fourth proportional to 75,587.12, 113,378.16 and 40,595.12 is: 60,891.33
Step by Step Solution
- Step 1: Write the proportion equation
75,587.12 : 113,378.16 = 40,595.12 : x - Step 2: Convert to fraction form
75,587.12/113,378.16 = 40,595.12/x - Step 3: Cross multiply
75,587.12x = 113,378.16 × 40,595.12 - Step 4: Simplify right side
75,587.12x = 4,602,600,010.58 - Step 5: Solve for x
x = 4,602,600,010.58/75,587.12 - Step 6: Final answer
x = 60,891.33
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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.