Finding the Fourth Proportional to 83,277.70, 124,916.55 and 36,621.70
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Solution
The fourth proportional to 83,277.70, 124,916.55 and 36,621.70 is: 54,932.55
Step by Step Solution
- Step 1: Write the proportion equation
83,277.70 : 124,916.55 = 36,621.70 : x - Step 2: Convert to fraction form
83,277.70/124,916.55 = 36,621.70/x - Step 3: Cross multiply
83,277.70x = 124,916.55 × 36,621.70 - Step 4: Simplify right side
83,277.70x = 4,574,656,419.14 - Step 5: Solve for x
x = 4,574,656,419.14/83,277.70 - Step 6: Final answer
x = 54,932.55
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1.5x scale
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.