Finding the Fourth Proportional to 84,309.24, 126,473.58 and 28,156.80
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Solution
The fourth proportional to 84,309.24, 126,473.58 and 28,156.80 is: 42,238.45
Step by Step Solution
- Step 1: Write the proportion equation
84,309.24 : 126,473.58 = 28,156.80 : x - Step 2: Convert to fraction form
84,309.24/126,473.58 = 28,156.80/x - Step 3: Cross multiply
84,309.24x = 126,473.58 × 28,156.80 - Step 4: Simplify right side
84,309.24x = 3,561,091,297.34 - Step 5: Solve for x
x = 3,561,091,297.34/84,309.24 - Step 6: Final answer
x = 42,238.45
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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.