Finding the Fourth Proportional to 91,699.92, 126,541.44 and 51,418.08
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Solution
The fourth proportional to 91,699.92, 126,541.44 and 51,418.08 is: 70,954.46
Step by Step Solution
- Step 1: Write the proportion equation
91,699.92 : 126,541.44 = 51,418.08 : x - Step 2: Convert to fraction form
91,699.92/126,541.44 = 51,418.08/x - Step 3: Cross multiply
91,699.92x = 126,541.44 × 51,418.08 - Step 4: Simplify right side
91,699.92x = 6,506,517,885.24 - Step 5: Solve for x
x = 6,506,517,885.24/91,699.92 - Step 6: Final answer
x = 70,954.46
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.