Finding the Fourth Proportional to 84,603.80, 126,894.68 and 40,258.76
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Solution
The fourth proportional to 84,603.80, 126,894.68 and 40,258.76 is: 60,382.90
Step by Step Solution
- Step 1: Write the proportion equation
84,603.80 : 126,894.68 = 40,258.76 : x - Step 2: Convert to fraction form
84,603.80/126,894.68 = 40,258.76/x - Step 3: Cross multiply
84,603.80x = 126,894.68 × 40,258.76 - Step 4: Simplify right side
84,603.80x = 5,108,622,467.40 - Step 5: Solve for x
x = 5,108,622,467.40/84,603.80 - Step 6: Final answer
x = 60,382.90
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.