Finding the Fourth Proportional to 85,758.11, 128,649.62 and 26,598.54
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Solution
The fourth proportional to 85,758.11, 128,649.62 and 26,598.54 is: 39,901.67
Step by Step Solution
- Step 1: Write the proportion equation
85,758.11 : 128,649.62 = 26,598.54 : x - Step 2: Convert to fraction form
85,758.11/128,649.62 = 26,598.54/x - Step 3: Cross multiply
85,758.11x = 128,649.62 × 26,598.54 - Step 4: Simplify right side
85,758.11x = 3,421,892,063.55 - Step 5: Solve for x
x = 3,421,892,063.55/85,758.11 - Step 6: Final answer
x = 39,901.67
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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.