Finding the Fourth Proportional to 83,973.70, 125,835.98 and 61,678.08
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Solution
The fourth proportional to 83,973.70, 125,835.98 and 61,678.08 is: 92,425.63
Step by Step Solution
- Step 1: Write the proportion equation
83,973.70 : 125,835.98 = 61,678.08 : x - Step 2: Convert to fraction form
83,973.70/125,835.98 = 61,678.08/x - Step 3: Cross multiply
83,973.70x = 125,835.98 × 61,678.08 - Step 4: Simplify right side
83,973.70x = 7,761,321,679.87 - Step 5: Solve for x
x = 7,761,321,679.87/83,973.70 - Step 6: Final answer
x = 92,425.63
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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.