Finding the Fourth Proportional to 76,497.08, 114,750.68 and 20,336.40
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Solution
The fourth proportional to 76,497.08, 114,750.68 and 20,336.40 is: 30,505.95
Step by Step Solution
- Step 1: Write the proportion equation
76,497.08 : 114,750.68 = 20,336.40 : x - Step 2: Convert to fraction form
76,497.08/114,750.68 = 20,336.40/x - Step 3: Cross multiply
76,497.08x = 114,750.68 × 20,336.40 - Step 4: Simplify right side
76,497.08x = 2,333,615,627.07 - Step 5: Solve for x
x = 2,333,615,627.07/76,497.08 - Step 6: Final answer
x = 30,505.95
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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.