Finding the Fourth Proportional to 68,815.58, 102,962.54 and 40,750.70
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Solution
The fourth proportional to 68,815.58, 102,962.54 and 40,750.70 is: 60,971.59
Step by Step Solution
- Step 1: Write the proportion equation
68,815.58 : 102,962.54 = 40,750.70 : x - Step 2: Convert to fraction form
68,815.58/102,962.54 = 40,750.70/x - Step 3: Cross multiply
68,815.58x = 102,962.54 × 40,750.70 - Step 4: Simplify right side
68,815.58x = 4,195,795,165.84 - Step 5: Solve for x
x = 4,195,795,165.84/68,815.58 - Step 6: Final answer
x = 60,971.59
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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.