Finding the Fourth Proportional to 76,802.16, 115,222.80 and 32,440.08
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Solution
The fourth proportional to 76,802.16, 115,222.80 and 32,440.08 is: 48,668.38
Step by Step Solution
- Step 1: Write the proportion equation
76,802.16 : 115,222.80 = 32,440.08 : x - Step 2: Convert to fraction form
76,802.16/115,222.80 = 32,440.08/x - Step 3: Cross multiply
76,802.16x = 115,222.80 × 32,440.08 - Step 4: Simplify right side
76,802.16x = 3,737,836,849.82 - Step 5: Solve for x
x = 3,737,836,849.82/76,802.16 - Step 6: Final answer
x = 48,668.38
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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.