Finding the Fourth Proportional to 88,000.07, 131,941.79 and 31,832.79
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Solution
The fourth proportional to 88,000.07, 131,941.79 and 31,832.79 is: 47,728.09
Step by Step Solution
- Step 1: Write the proportion equation
88,000.07 : 131,941.79 = 31,832.79 : x - Step 2: Convert to fraction form
88,000.07/131,941.79 = 31,832.79/x - Step 3: Cross multiply
88,000.07x = 131,941.79 × 31,832.79 - Step 4: Simplify right side
88,000.07x = 4,200,075,134.13 - Step 5: Solve for x
x = 4,200,075,134.13/88,000.07 - Step 6: Final answer
x = 47,728.09
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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.