Finding the Fourth Proportional to 84,012.08, 126,017.79 and 39,614.76
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Solution
The fourth proportional to 84,012.08, 126,017.79 and 39,614.76 is: 59,421.99
Step by Step Solution
- Step 1: Write the proportion equation
84,012.08 : 126,017.79 = 39,614.76 : x - Step 2: Convert to fraction form
84,012.08/126,017.79 = 39,614.76/x - Step 3: Cross multiply
84,012.08x = 126,017.79 × 39,614.76 - Step 4: Simplify right side
84,012.08x = 4,992,164,506.58 - Step 5: Solve for x
x = 4,992,164,506.58/84,012.08 - Step 6: Final answer
x = 59,421.99
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1.5x scale
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.