Finding the Fourth Proportional to 77,042.70, 115,564.05 and 24,456.30
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Solution
The fourth proportional to 77,042.70, 115,564.05 and 24,456.30 is: 36,684.45
Step by Step Solution
- Step 1: Write the proportion equation
77,042.70 : 115,564.05 = 24,456.30 : x - Step 2: Convert to fraction form
77,042.70/115,564.05 = 24,456.30/x - Step 3: Cross multiply
77,042.70x = 115,564.05 × 24,456.30 - Step 4: Simplify right side
77,042.70x = 2,826,269,076.02 - Step 5: Solve for x
x = 2,826,269,076.02/77,042.70 - Step 6: Final answer
x = 36,684.45
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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.