Finding the Fourth Proportional to 75,719.14, 104,439.45 and 64,310.02
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Solution
The fourth proportional to 75,719.14, 104,439.45 and 64,310.02 is: 88,702.84
Step by Step Solution
- Step 1: Write the proportion equation
75,719.14 : 104,439.45 = 64,310.02 : x - Step 2: Convert to fraction form
75,719.14/104,439.45 = 64,310.02/x - Step 3: Cross multiply
75,719.14x = 104,439.45 × 64,310.02 - Step 4: Simplify right side
75,719.14x = 6,716,503,118.29 - Step 5: Solve for x
x = 6,716,503,118.29/75,719.14 - Step 6: Final answer
x = 88,702.84
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.