Finding the Fourth Proportional to 79,921.74, 119,848.44 and 29,967.20
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Solution
The fourth proportional to 79,921.74, 119,848.44 and 29,967.20 is: 44,937.99
Step by Step Solution
- Step 1: Write the proportion equation
79,921.74 : 119,848.44 = 29,967.20 : x - Step 2: Convert to fraction form
79,921.74/119,848.44 = 29,967.20/x - Step 3: Cross multiply
79,921.74x = 119,848.44 × 29,967.20 - Step 4: Simplify right side
79,921.74x = 3,591,522,171.17 - Step 5: Solve for x
x = 3,591,522,171.17/79,921.74 - Step 6: Final answer
x = 44,937.99
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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.