Finding the Fourth Proportional to 70,823.76, 106,113.07 and 49,723.80
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Solution
The fourth proportional to 70,823.76, 106,113.07 and 49,723.80 is: 74,499.65
Step by Step Solution
- Step 1: Write the proportion equation
70,823.76 : 106,113.07 = 49,723.80 : x - Step 2: Convert to fraction form
70,823.76/106,113.07 = 49,723.80/x - Step 3: Cross multiply
70,823.76x = 106,113.07 × 49,723.80 - Step 4: Simplify right side
70,823.76x = 5,276,345,070.07 - Step 5: Solve for x
x = 5,276,345,070.07/70,823.76 - Step 6: Final answer
x = 74,499.65
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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.