Finding the Fourth Proportional to 73,130.70, 109,482.21 and 66,126.81
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Solution
The fourth proportional to 73,130.70, 109,482.21 and 66,126.81 is: 98,996.85
Step by Step Solution
- Step 1: Write the proportion equation
73,130.70 : 109,482.21 = 66,126.81 : x - Step 2: Convert to fraction form
73,130.70/109,482.21 = 66,126.81/x - Step 3: Cross multiply
73,130.70x = 109,482.21 × 66,126.81 - Step 4: Simplify right side
73,130.70x = 7,239,709,299.05 - Step 5: Solve for x
x = 7,239,709,299.05/73,130.70 - Step 6: Final answer
x = 98,996.85
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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.