Finding the Fourth Proportional to 91,283.68, 125,973.66 and 57,288.52
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Solution
The fourth proportional to 91,283.68, 125,973.66 and 57,288.52 is: 79,059.53
Step by Step Solution
- Step 1: Write the proportion equation
91,283.68 : 125,973.66 = 57,288.52 : x - Step 2: Convert to fraction form
91,283.68/125,973.66 = 57,288.52/x - Step 3: Cross multiply
91,283.68x = 125,973.66 × 57,288.52 - Step 4: Simplify right side
91,283.68x = 7,216,844,540.38 - Step 5: Solve for x
x = 7,216,844,540.38/91,283.68 - Step 6: Final answer
x = 79,059.53
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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.