Finding the Fourth Proportional to 85,116.19, 117,455.84 and 48,815.76
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Solution
The fourth proportional to 85,116.19, 117,455.84 and 48,815.76 is: 67,363.17
Step by Step Solution
- Step 1: Write the proportion equation
85,116.19 : 117,455.84 = 48,815.76 : x - Step 2: Convert to fraction form
85,116.19/117,455.84 = 48,815.76/x - Step 3: Cross multiply
85,116.19x = 117,455.84 × 48,815.76 - Step 4: Simplify right side
85,116.19x = 5,733,696,096.04 - Step 5: Solve for x
x = 5,733,696,096.04/85,116.19 - Step 6: Final answer
x = 67,363.17
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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.