Finding the Fourth Proportional to 84,006.20, 115,927.26 and 46,281.80
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Solution
The fourth proportional to 84,006.20, 115,927.26 and 46,281.80 is: 63,868.17
Step by Step Solution
- Step 1: Write the proportion equation
84,006.20 : 115,927.26 = 46,281.80 : x - Step 2: Convert to fraction form
84,006.20/115,927.26 = 46,281.80/x - Step 3: Cross multiply
84,006.20x = 115,927.26 × 46,281.80 - Step 4: Simplify right side
84,006.20x = 5,365,322,261.87 - Step 5: Solve for x
x = 5,365,322,261.87/84,006.20 - Step 6: Final answer
x = 63,868.17
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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.