Finding the Fourth Proportional to 89,937.30, 124,113.66 and 49,651.12
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Solution
The fourth proportional to 89,937.30, 124,113.66 and 49,651.12 is: 68,518.65
Step by Step Solution
- Step 1: Write the proportion equation
89,937.30 : 124,113.66 = 49,651.12 : x - Step 2: Convert to fraction form
89,937.30/124,113.66 = 49,651.12/x - Step 3: Cross multiply
89,937.30x = 124,113.66 × 49,651.12 - Step 4: Simplify right side
89,937.30x = 6,162,382,226.30 - Step 5: Solve for x
x = 6,162,382,226.30/89,937.30 - Step 6: Final answer
x = 68,518.65
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.