Finding the Fourth Proportional to 94,228.56, 129,982.80 and 57,904.80
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Solution
The fourth proportional to 94,228.56, 129,982.80 and 57,904.80 is: 79,876.29
Step by Step Solution
- Step 1: Write the proportion equation
94,228.56 : 129,982.80 = 57,904.80 : x - Step 2: Convert to fraction form
94,228.56/129,982.80 = 57,904.80/x - Step 3: Cross multiply
94,228.56x = 129,982.80 × 57,904.80 - Step 4: Simplify right side
94,228.56x = 7,526,628,037.44 - Step 5: Solve for x
x = 7,526,628,037.44/94,228.56 - Step 6: Final answer
x = 79,876.29
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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.