Finding the Fourth Proportional to 88,201.77, 121,719.29 and 47,915.84
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Solution
The fourth proportional to 88,201.77, 121,719.29 and 47,915.84 is: 66,124.31
Step by Step Solution
- Step 1: Write the proportion equation
88,201.77 : 121,719.29 = 47,915.84 : x - Step 2: Convert to fraction form
88,201.77/121,719.29 = 47,915.84/x - Step 3: Cross multiply
88,201.77x = 121,719.29 × 47,915.84 - Step 4: Simplify right side
88,201.77x = 5,832,281,176.38 - Step 5: Solve for x
x = 5,832,281,176.38/88,201.77 - Step 6: Final answer
x = 66,124.31
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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.