Finding the Fourth Proportional to 69,284.16, 103,937.18 and 31,880.99
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Solution
The fourth proportional to 69,284.16, 103,937.18 and 31,880.99 is: 47,826.52
Step by Step Solution
- Step 1: Write the proportion equation
69,284.16 : 103,937.18 = 31,880.99 : x - Step 2: Convert to fraction form
69,284.16/103,937.18 = 31,880.99/x - Step 3: Cross multiply
69,284.16x = 103,937.18 × 31,880.99 - Step 4: Simplify right side
69,284.16x = 3,313,620,296.65 - Step 5: Solve for x
x = 3,313,620,296.65/69,284.16 - Step 6: Final answer
x = 47,826.52
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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.