Finding the Fourth Proportional to 73,891.36, 101,967.12 and 40,358.56
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Solution
The fourth proportional to 73,891.36, 101,967.12 and 40,358.56 is: 55,693.20
Step by Step Solution
- Step 1: Write the proportion equation
73,891.36 : 101,967.12 = 40,358.56 : x - Step 2: Convert to fraction form
73,891.36/101,967.12 = 40,358.56/x - Step 3: Cross multiply
73,891.36x = 101,967.12 × 40,358.56 - Step 4: Simplify right side
73,891.36x = 4,115,246,130.55 - Step 5: Solve for x
x = 4,115,246,130.55/73,891.36 - Step 6: Final answer
x = 55,693.20
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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.