Finding the Fourth Proportional to 79,748.28, 110,055.12 and 45,762.99
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Solution
The fourth proportional to 79,748.28, 110,055.12 and 45,762.99 is: 63,154.36
Step by Step Solution
- Step 1: Write the proportion equation
79,748.28 : 110,055.12 = 45,762.99 : x - Step 2: Convert to fraction form
79,748.28/110,055.12 = 45,762.99/x - Step 3: Cross multiply
79,748.28x = 110,055.12 × 45,762.99 - Step 4: Simplify right side
79,748.28x = 5,036,451,356.01 - Step 5: Solve for x
x = 5,036,451,356.01/79,748.28 - Step 6: Final answer
x = 63,154.36
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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.