Finding the Fourth Proportional to 83,479.88, 115,202.58 and 45,754.76
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Solution
The fourth proportional to 83,479.88, 115,202.58 and 45,754.76 is: 63,141.76
Step by Step Solution
- Step 1: Write the proportion equation
83,479.88 : 115,202.58 = 45,754.76 : x - Step 2: Convert to fraction form
83,479.88/115,202.58 = 45,754.76/x - Step 3: Cross multiply
83,479.88x = 115,202.58 × 45,754.76 - Step 4: Simplify right side
83,479.88x = 5,271,066,399.28 - Step 5: Solve for x
x = 5,271,066,399.28/83,479.88 - Step 6: Final answer
x = 63,141.76
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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.