Finding the Fourth Proportional to 88,728.24, 133,116.30 and 38,812.80
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Solution
The fourth proportional to 88,728.24, 133,116.30 and 38,812.80 is: 58,229.67
Step by Step Solution
- Step 1: Write the proportion equation
88,728.24 : 133,116.30 = 38,812.80 : x - Step 2: Convert to fraction form
88,728.24/133,116.30 = 38,812.80/x - Step 3: Cross multiply
88,728.24x = 133,116.30 × 38,812.80 - Step 4: Simplify right side
88,728.24x = 5,166,616,328.64 - Step 5: Solve for x
x = 5,166,616,328.64/88,728.24 - Step 6: Final answer
x = 58,229.67
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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.