Finding the Fourth Proportional to 83,763.73, 115,590.76 and 47,957.08
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Solution
The fourth proportional to 83,763.73, 115,590.76 and 47,957.08 is: 66,178.95
Step by Step Solution
- Step 1: Write the proportion equation
83,763.73 : 115,590.76 = 47,957.08 : x - Step 2: Convert to fraction form
83,763.73/115,590.76 = 47,957.08/x - Step 3: Cross multiply
83,763.73x = 115,590.76 × 47,957.08 - Step 4: Simplify right side
83,763.73x = 5,543,395,324.58 - Step 5: Solve for x
x = 5,543,395,324.58/83,763.73 - Step 6: Final answer
x = 66,178.95
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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.