Finding the Fourth Proportional to 66,890.21, 100,228.59 and 35,298.99
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Solution
The fourth proportional to 66,890.21, 100,228.59 and 35,298.99 is: 52,892.17
Step by Step Solution
- Step 1: Write the proportion equation
66,890.21 : 100,228.59 = 35,298.99 : x - Step 2: Convert to fraction form
66,890.21/100,228.59 = 35,298.99/x - Step 3: Cross multiply
66,890.21x = 100,228.59 × 35,298.99 - Step 4: Simplify right side
66,890.21x = 3,537,967,996.12 - Step 5: Solve for x
x = 3,537,967,996.12/66,890.21 - Step 6: Final answer
x = 52,892.17
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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.