Finding the Fourth Proportional to 88,133.76, 121,626.24 and 48,389.76
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Solution
The fourth proportional to 88,133.76, 121,626.24 and 48,389.76 is: 66,778.78
Step by Step Solution
- Step 1: Write the proportion equation
88,133.76 : 121,626.24 = 48,389.76 : x - Step 2: Convert to fraction form
88,133.76/121,626.24 = 48,389.76/x - Step 3: Cross multiply
88,133.76x = 121,626.24 × 48,389.76 - Step 4: Simplify right side
88,133.76x = 5,885,464,563.30 - Step 5: Solve for x
x = 5,885,464,563.30/88,133.76 - Step 6: Final answer
x = 66,778.78
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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.