Finding the Fourth Proportional to 101,855.44, 140,557.88 and 56,532.09
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Solution
The fourth proportional to 101,855.44, 140,557.88 and 56,532.09 is: 78,012.83
Step by Step Solution
- Step 1: Write the proportion equation
101,855.44 : 140,557.88 = 56,532.09 : x - Step 2: Convert to fraction form
101,855.44/140,557.88 = 56,532.09/x - Step 3: Cross multiply
101,855.44x = 140,557.88 × 56,532.09 - Step 4: Simplify right side
101,855.44x = 7,946,031,390.79 - Step 5: Solve for x
x = 7,946,031,390.79/101,855.44 - Step 6: Final answer
x = 78,012.83
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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.