Finding the Fourth Proportional to 68,560.16, 102,853.09 and 31,122.84
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Solution
The fourth proportional to 68,560.16, 102,853.09 and 31,122.84 is: 46,690.10
Step by Step Solution
- Step 1: Write the proportion equation
68,560.16 : 102,853.09 = 31,122.84 : x - Step 2: Convert to fraction form
68,560.16/102,853.09 = 31,122.84/x - Step 3: Cross multiply
68,560.16x = 102,853.09 × 31,122.84 - Step 4: Simplify right side
68,560.16x = 3,201,080,688.18 - Step 5: Solve for x
x = 3,201,080,688.18/68,560.16 - Step 6: Final answer
x = 46,690.10
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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.