Finding the Fourth Proportional to 85,697.68, 118,264.04 and 49,379.08
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Solution
The fourth proportional to 85,697.68, 118,264.04 and 49,379.08 is: 68,143.85
Step by Step Solution
- Step 1: Write the proportion equation
85,697.68 : 118,264.04 = 49,379.08 : x - Step 2: Convert to fraction form
85,697.68/118,264.04 = 49,379.08/x - Step 3: Cross multiply
85,697.68x = 118,264.04 × 49,379.08 - Step 4: Simplify right side
85,697.68x = 5,839,769,492.28 - Step 5: Solve for x
x = 5,839,769,492.28/85,697.68 - Step 6: Final answer
x = 68,143.85
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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.