Finding the Fourth Proportional to 89,977.14, 124,163.01 and 54,178.74
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Solution
The fourth proportional to 89,977.14, 124,163.01 and 54,178.74 is: 74,763.38
Step by Step Solution
- Step 1: Write the proportion equation
89,977.14 : 124,163.01 = 54,178.74 : x - Step 2: Convert to fraction form
89,977.14/124,163.01 = 54,178.74/x - Step 3: Cross multiply
89,977.14x = 124,163.01 × 54,178.74 - Step 4: Simplify right side
89,977.14x = 6,726,995,436.41 - Step 5: Solve for x
x = 6,726,995,436.41/89,977.14 - Step 6: Final answer
x = 74,763.38
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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.