Finding the Fourth Proportional to 88,122.84, 121,615.44 and 49,882.32
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Solution
The fourth proportional to 88,122.84, 121,615.44 and 49,882.32 is: 68,840.95
Step by Step Solution
- Step 1: Write the proportion equation
88,122.84 : 121,615.44 = 49,882.32 : x - Step 2: Convert to fraction form
88,122.84/121,615.44 = 49,882.32/x - Step 3: Cross multiply
88,122.84x = 121,615.44 × 49,882.32 - Step 4: Simplify right side
88,122.84x = 6,066,460,295.02 - Step 5: Solve for x
x = 6,066,460,295.02/88,122.84 - Step 6: Final answer
x = 68,840.95
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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.