Finding the Fourth Proportional to 83,423.76, 115,124.79 and 47,613.02
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Solution
The fourth proportional to 83,423.76, 115,124.79 and 47,613.02 is: 65,705.96
Step by Step Solution
- Step 1: Write the proportion equation
83,423.76 : 115,124.79 = 47,613.02 : x - Step 2: Convert to fraction form
83,423.76/115,124.79 = 47,613.02/x - Step 3: Cross multiply
83,423.76x = 115,124.79 × 47,613.02 - Step 4: Simplify right side
83,423.76x = 5,481,438,353.14 - Step 5: Solve for x
x = 5,481,438,353.14/83,423.76 - Step 6: Final answer
x = 65,705.96
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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.