Finding the Fourth Proportional to 83,467.08, 115,121.70 and 57,973.44
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Solution
The fourth proportional to 83,467.08, 115,121.70 and 57,973.44 is: 79,959.68
Step by Step Solution
- Step 1: Write the proportion equation
83,467.08 : 115,121.70 = 57,973.44 : x - Step 2: Convert to fraction form
83,467.08/115,121.70 = 57,973.44/x - Step 3: Cross multiply
83,467.08x = 115,121.70 × 57,973.44 - Step 4: Simplify right side
83,467.08x = 6,674,000,967.65 - Step 5: Solve for x
x = 6,674,000,967.65/83,467.08 - Step 6: Final answer
x = 79,959.68
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1.5x scale
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.