Finding the Fourth Proportional to 73,889.52, 110,820.96 and 21,286.08
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Solution
The fourth proportional to 73,889.52, 110,820.96 and 21,286.08 is: 31,925.28
Step by Step Solution
- Step 1: Write the proportion equation
73,889.52 : 110,820.96 = 21,286.08 : x - Step 2: Convert to fraction form
73,889.52/110,820.96 = 21,286.08/x - Step 3: Cross multiply
73,889.52x = 110,820.96 × 21,286.08 - Step 4: Simplify right side
73,889.52x = 2,358,943,820.24 - Step 5: Solve for x
x = 2,358,943,820.24/73,889.52 - Step 6: Final answer
x = 31,925.28
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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.