Finding the Fourth Proportional to 75,923.21, 104,896.07 and 64,711.19
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Solution
The fourth proportional to 75,923.21, 104,896.07 and 64,711.19 is: 89,405.45
Step by Step Solution
- Step 1: Write the proportion equation
75,923.21 : 104,896.07 = 64,711.19 : x - Step 2: Convert to fraction form
75,923.21/104,896.07 = 64,711.19/x - Step 3: Cross multiply
75,923.21x = 104,896.07 × 64,711.19 - Step 4: Simplify right side
75,923.21x = 6,787,948,667.99 - Step 5: Solve for x
x = 6,787,948,667.99/75,923.21 - Step 6: Final answer
x = 89,405.45
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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.