Finding the Fourth Proportional to 73,937.12, 110,905.76 and 18,533.12
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Solution
The fourth proportional to 73,937.12, 110,905.76 and 18,533.12 is: 27,799.70
Step by Step Solution
- Step 1: Write the proportion equation
73,937.12 : 110,905.76 = 18,533.12 : x - Step 2: Convert to fraction form
73,937.12/110,905.76 = 18,533.12/x - Step 3: Cross multiply
73,937.12x = 110,905.76 × 18,533.12 - Step 4: Simplify right side
73,937.12x = 2,055,429,758.77 - Step 5: Solve for x
x = 2,055,429,758.77/73,937.12 - Step 6: Final answer
x = 27,799.70
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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.