Finding the Fourth Proportional to 70,188.75, 105,253.16 and 40,626.99
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Solution
The fourth proportional to 70,188.75, 105,253.16 and 40,626.99 is: 60,923.14
Step by Step Solution
- Step 1: Write the proportion equation
70,188.75 : 105,253.16 = 40,626.99 : x - Step 2: Convert to fraction form
70,188.75/105,253.16 = 40,626.99/x - Step 3: Cross multiply
70,188.75x = 105,253.16 × 40,626.99 - Step 4: Simplify right side
70,188.75x = 4,276,118,875.65 - Step 5: Solve for x
x = 4,276,118,875.65/70,188.75 - Step 6: Final answer
x = 60,923.14
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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.