Finding the Fourth Proportional to 69,246.60, 103,787.88 and 31,775.09
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Solution
The fourth proportional to 69,246.60, 103,787.88 and 31,775.09 is: 47,624.99
Step by Step Solution
- Step 1: Write the proportion equation
69,246.60 : 103,787.88 = 31,775.09 : x - Step 2: Convert to fraction form
69,246.60/103,787.88 = 31,775.09/x - Step 3: Cross multiply
69,246.60x = 103,787.88 × 31,775.09 - Step 4: Simplify right side
69,246.60x = 3,297,868,768.55 - Step 5: Solve for x
x = 3,297,868,768.55/69,246.60 - Step 6: Final answer
x = 47,624.99
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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.