Finding the Fourth Proportional to 88,722.30, 122,438.63 and 48,437.76
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Solution
The fourth proportional to 88,722.30, 122,438.63 and 48,437.76 is: 66,845.12
Step by Step Solution
- Step 1: Write the proportion equation
88,722.30 : 122,438.63 = 48,437.76 : x - Step 2: Convert to fraction form
88,722.30/122,438.63 = 48,437.76/x - Step 3: Cross multiply
88,722.30x = 122,438.63 × 48,437.76 - Step 4: Simplify right side
88,722.30x = 5,930,652,974.67 - Step 5: Solve for x
x = 5,930,652,974.67/88,722.30 - Step 6: Final answer
x = 66,845.12
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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.