Finding the Fourth Proportional to 77,083.21, 115,623.02 and 35,530.21
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Solution
The fourth proportional to 77,083.21, 115,623.02 and 35,530.21 is: 53,294.49
Step by Step Solution
- Step 1: Write the proportion equation
77,083.21 : 115,623.02 = 35,530.21 : x - Step 2: Convert to fraction form
77,083.21/115,623.02 = 35,530.21/x - Step 3: Cross multiply
77,083.21x = 115,623.02 × 35,530.21 - Step 4: Simplify right side
77,083.21x = 4,108,110,003.78 - Step 5: Solve for x
x = 4,108,110,003.78/77,083.21 - Step 6: Final answer
x = 53,294.49
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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.