Finding the Fourth Proportional to 84,637.04, 126,955.74 and 21,457.14
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Solution
The fourth proportional to 84,637.04, 126,955.74 and 21,457.14 is: 32,185.75
Step by Step Solution
- Step 1: Write the proportion equation
84,637.04 : 126,955.74 = 21,457.14 : x - Step 2: Convert to fraction form
84,637.04/126,955.74 = 21,457.14/x - Step 3: Cross multiply
84,637.04x = 126,955.74 × 21,457.14 - Step 4: Simplify right side
84,637.04x = 2,724,106,979.70 - Step 5: Solve for x
x = 2,724,106,979.70/84,637.04 - Step 6: Final answer
x = 32,185.75
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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.