Finding the Fourth Proportional to 83,541.29, 115,293.09 and 47,730.53
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Solution
The fourth proportional to 83,541.29, 115,293.09 and 47,730.53 is: 65,871.62
Step by Step Solution
- Step 1: Write the proportion equation
83,541.29 : 115,293.09 = 47,730.53 : x - Step 2: Convert to fraction form
83,541.29/115,293.09 = 47,730.53/x - Step 3: Cross multiply
83,541.29x = 115,293.09 × 47,730.53 - Step 4: Simplify right side
83,541.29x = 5,503,000,171.71 - Step 5: Solve for x
x = 5,503,000,171.71/83,541.29 - Step 6: Final answer
x = 65,871.62
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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.