Finding the Fourth Proportional to 88,712.61, 122,423.70 and 48,427.26
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Solution
The fourth proportional to 88,712.61, 122,423.70 and 48,427.26 is: 66,829.78
Step by Step Solution
- Step 1: Write the proportion equation
88,712.61 : 122,423.70 = 48,427.26 : x - Step 2: Convert to fraction form
88,712.61/122,423.70 = 48,427.26/x - Step 3: Cross multiply
88,712.61x = 122,423.70 × 48,427.26 - Step 4: Simplify right side
88,712.61x = 5,928,644,350.06 - Step 5: Solve for x
x = 5,928,644,350.06/88,712.61 - Step 6: Final answer
x = 66,829.78
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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.