Finding the Fourth Proportional to 79,868.57, 110,237.83 and 48,031.31
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Solution
The fourth proportional to 79,868.57, 110,237.83 and 48,031.31 is: 66,294.76
Step by Step Solution
- Step 1: Write the proportion equation
79,868.57 : 110,237.83 = 48,031.31 : x - Step 2: Convert to fraction form
79,868.57/110,237.83 = 48,031.31/x - Step 3: Cross multiply
79,868.57x = 110,237.83 × 48,031.31 - Step 4: Simplify right side
79,868.57x = 5,294,867,541.97 - Step 5: Solve for x
x = 5,294,867,541.97/79,868.57 - Step 6: Final answer
x = 66,294.76
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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.