Finding the Fourth Proportional to 99,534.81, 149,278.99 and 57,325.17
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Solution
The fourth proportional to 99,534.81, 149,278.99 and 57,325.17 is: 85,974.38
Step by Step Solution
- Step 1: Write the proportion equation
99,534.81 : 149,278.99 = 57,325.17 : x - Step 2: Convert to fraction form
99,534.81/149,278.99 = 57,325.17/x - Step 3: Cross multiply
99,534.81x = 149,278.99 × 57,325.17 - Step 4: Simplify right side
99,534.81x = 8,557,443,479.18 - Step 5: Solve for x
x = 8,557,443,479.18/99,534.81 - Step 6: Final answer
x = 85,974.38
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.