Finding the Fourth Proportional to 71,074.24, 106,632.66 and 21,156.08
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Solution
The fourth proportional to 71,074.24, 106,632.66 and 21,156.08 is: 31,740.46
Step by Step Solution
- Step 1: Write the proportion equation
71,074.24 : 106,632.66 = 21,156.08 : x - Step 2: Convert to fraction form
71,074.24/106,632.66 = 21,156.08/x - Step 3: Cross multiply
71,074.24x = 106,632.66 × 21,156.08 - Step 4: Simplify right side
71,074.24x = 2,255,929,085.57 - Step 5: Solve for x
x = 2,255,929,085.57/71,074.24 - Step 6: Final answer
x = 31,740.46
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.