Finding the Fourth Proportional to 88,665.40, 122,357.99 and 48,378.88
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Solution
The fourth proportional to 88,665.40, 122,357.99 and 48,378.88 is: 66,762.71
Step by Step Solution
- Step 1: Write the proportion equation
88,665.40 : 122,357.99 = 48,378.88 : x - Step 2: Convert to fraction form
88,665.40/122,357.99 = 48,378.88/x - Step 3: Cross multiply
88,665.40x = 122,357.99 × 48,378.88 - Step 4: Simplify right side
88,665.40x = 5,919,541,661.57 - Step 5: Solve for x
x = 5,919,541,661.57/88,665.40 - Step 6: Final answer
x = 66,762.71
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.