Finding the Fourth Proportional to 73,922.99, 102,013.76 and 39,931.48
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Solution
The fourth proportional to 73,922.99, 102,013.76 and 39,931.48 is: 55,105.46
Step by Step Solution
- Step 1: Write the proportion equation
73,922.99 : 102,013.76 = 39,931.48 : x - Step 2: Convert to fraction form
73,922.99/102,013.76 = 39,931.48/x - Step 3: Cross multiply
73,922.99x = 102,013.76 × 39,931.48 - Step 4: Simplify right side
73,922.99x = 4,073,559,907.10 - Step 5: Solve for x
x = 4,073,559,907.10/73,922.99 - Step 6: Final answer
x = 55,105.46
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1.5x scale
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.