Finding the Fourth Proportional to 79,889.36, 119,752.99 and 51,827.32
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Solution
The fourth proportional to 79,889.36, 119,752.99 and 51,827.32 is: 77,688.40
Step by Step Solution
- Step 1: Write the proportion equation
79,889.36 : 119,752.99 = 51,827.32 : x - Step 2: Convert to fraction form
79,889.36/119,752.99 = 51,827.32/x - Step 3: Cross multiply
79,889.36x = 119,752.99 × 51,827.32 - Step 4: Simplify right side
79,889.36x = 6,206,476,533.69 - Step 5: Solve for x
x = 6,206,476,533.69/79,889.36 - Step 6: Final answer
x = 77,688.40
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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.