Finding the Fourth Proportional to 83,416.41, 115,122.90 and 47,611.77
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Solution
The fourth proportional to 83,416.41, 115,122.90 and 47,611.77 is: 65,708.95
Step by Step Solution
- Step 1: Write the proportion equation
83,416.41 : 115,122.90 = 47,611.77 : x - Step 2: Convert to fraction form
83,416.41/115,122.90 = 47,611.77/x - Step 3: Cross multiply
83,416.41x = 115,122.90 × 47,611.77 - Step 4: Simplify right side
83,416.41x = 5,481,205,036.53 - Step 5: Solve for x
x = 5,481,205,036.53/83,416.41 - Step 6: Final answer
x = 65,708.95
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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.