Finding the Fourth Proportional to 79,967.66, 110,353.29 and 51,257.81
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Solution
The fourth proportional to 79,967.66, 110,353.29 and 51,257.81 is: 70,734.45
Step by Step Solution
- Step 1: Write the proportion equation
79,967.66 : 110,353.29 = 51,257.81 : x - Step 2: Convert to fraction form
79,967.66/110,353.29 = 51,257.81/x - Step 3: Cross multiply
79,967.66x = 110,353.29 × 51,257.81 - Step 4: Simplify right side
79,967.66x = 5,656,468,055.36 - Step 5: Solve for x
x = 5,656,468,055.36/79,967.66 - Step 6: Final answer
x = 70,734.45
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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.