Finding the Fourth Proportional to 89,803.19, 134,579.68 and 45,378.08
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Solution
The fourth proportional to 89,803.19, 134,579.68 and 45,378.08 is: 68,003.91
Step by Step Solution
- Step 1: Write the proportion equation
89,803.19 : 134,579.68 = 45,378.08 : x - Step 2: Convert to fraction form
89,803.19/134,579.68 = 45,378.08/x - Step 3: Cross multiply
89,803.19x = 134,579.68 × 45,378.08 - Step 4: Simplify right side
89,803.19x = 6,106,967,582.25 - Step 5: Solve for x
x = 6,106,967,582.25/89,803.19 - Step 6: Final answer
x = 68,003.91
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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.