Finding the Fourth Proportional to 88,719.84, 122,431.14 and 48,434.76
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Solution
The fourth proportional to 88,719.84, 122,431.14 and 48,434.76 is: 66,838.75
Step by Step Solution
- Step 1: Write the proportion equation
88,719.84 : 122,431.14 = 48,434.76 : x - Step 2: Convert to fraction form
88,719.84/122,431.14 = 48,434.76/x - Step 3: Cross multiply
88,719.84x = 122,431.14 × 48,434.76 - Step 4: Simplify right side
88,719.84x = 5,929,922,882.43 - Step 5: Solve for x
x = 5,929,922,882.43/88,719.84 - Step 6: Final answer
x = 66,838.75
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1.5x scale
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.