Finding the Fourth Proportional to 84,392.16, 126,583.68 and 42,838.08
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Solution
The fourth proportional to 84,392.16, 126,583.68 and 42,838.08 is: 64,254.81
Step by Step Solution
- Step 1: Write the proportion equation
84,392.16 : 126,583.68 = 42,838.08 : x - Step 2: Convert to fraction form
84,392.16/126,583.68 = 42,838.08/x - Step 3: Cross multiply
84,392.16x = 126,583.68 × 42,838.08 - Step 4: Simplify right side
84,392.16x = 5,422,601,810.53 - Step 5: Solve for x
x = 5,422,601,810.53/84,392.16 - Step 6: Final answer
x = 64,254.81
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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.