Finding the Fourth Proportional to 79,202.08, 109,257.40 and 48,977.76
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Solution
The fourth proportional to 79,202.08, 109,257.40 and 48,977.76 is: 67,563.66
Step by Step Solution
- Step 1: Write the proportion equation
79,202.08 : 109,257.40 = 48,977.76 : x - Step 2: Convert to fraction form
79,202.08/109,257.40 = 48,977.76/x - Step 3: Cross multiply
79,202.08x = 109,257.40 × 48,977.76 - Step 4: Simplify right side
79,202.08x = 5,351,182,715.42 - Step 5: Solve for x
x = 5,351,182,715.42/79,202.08 - Step 6: Final answer
x = 67,563.66
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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.