Finding the Fourth Proportional to 84,412.65, 126,681.21 and 40,039.53
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Solution
The fourth proportional to 84,412.65, 126,681.21 and 40,039.53 is: 60,088.81
Step by Step Solution
- Step 1: Write the proportion equation
84,412.65 : 126,681.21 = 40,039.53 : x - Step 2: Convert to fraction form
84,412.65/126,681.21 = 40,039.53/x - Step 3: Cross multiply
84,412.65x = 126,681.21 × 40,039.53 - Step 4: Simplify right side
84,412.65x = 5,072,256,108.23 - Step 5: Solve for x
x = 5,072,256,108.23/84,412.65 - Step 6: Final answer
x = 60,088.81
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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.