Finding the Fourth Proportional to 69,258.12, 104,103.90 and 45,716.99
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Solution
The fourth proportional to 69,258.12, 104,103.90 and 45,716.99 is: 68,718.54
Step by Step Solution
- Step 1: Write the proportion equation
69,258.12 : 104,103.90 = 45,716.99 : x - Step 2: Convert to fraction form
69,258.12/104,103.90 = 45,716.99/x - Step 3: Cross multiply
69,258.12x = 104,103.90 × 45,716.99 - Step 4: Simplify right side
69,258.12x = 4,759,316,434.74 - Step 5: Solve for x
x = 4,759,316,434.74/69,258.12 - Step 6: Final answer
x = 68,718.54
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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.