Finding the Fourth Proportional to 68,272.74, 102,422.97 and 28,829.70
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Solution
The fourth proportional to 68,272.74, 102,422.97 and 28,829.70 is: 43,250.40
Step by Step Solution
- Step 1: Write the proportion equation
68,272.74 : 102,422.97 = 28,829.70 : x - Step 2: Convert to fraction form
68,272.74/102,422.97 = 28,829.70/x - Step 3: Cross multiply
68,272.74x = 102,422.97 × 28,829.70 - Step 4: Simplify right side
68,272.74x = 2,952,823,498.21 - Step 5: Solve for x
x = 2,952,823,498.21/68,272.74 - Step 6: Final answer
x = 43,250.40
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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.